Home / Health Conditions / Thyroid Problems (Underactive, Overactive, Nodules & Cancer)
Thyroid Problems (Underactive, Overactive, Nodules & Cancer)
The thyroid is a small gland in the neck that sets the pace for the whole body. Underactive, overactive, lumpy or enlarged — most thyroid problems are found with a simple blood test or neck exam and are very treatable, and most thyroid cancers have an excellent outlook.
Call 911 for a possible thyroid emergency.
- Myxedema coma — a rare, life-threatening result of severe, untreated underactive thyroid. Signs include confusion or being very hard to wake, a very low body temperature and a slow heartbeat (review, Endocr Pract 2025 (opens in a new tab), review, Thyroid Res 2025 (opens in a new tab)). It is an emergency that needs hospital treatment right away (NIDDK (opens in a new tab), NHS (opens in a new tab)); it is more common in older people (NHS (opens in a new tab)).
- Thyroid storm — a rare, life-threatening flare of an overactive thyroid: high fever, a very fast or irregular heartbeat, agitation or confusion, vomiting or diarrhea, heavy sweating, yellowing of the skin or eyes, or passing out (NHS (opens in a new tab), review, J Clin Endocrinol Metab 2026 (opens in a new tab)).
- Trouble breathing or a wheeze with a swollen neck (NHS (opens in a new tab)), or a swollen throat, hives or trouble breathing after a thyroid medicine (NHS (opens in a new tab)).
See a doctor promptly for a new lump in the front of your neck — especially with a hoarse voice that isn’t getting better, trouble swallowing or breathing, or pain or pressure in the front of the neck (NHS (opens in a new tab), NCI (opens in a new tab)). Most lumps turn out to be harmless, but only tests can tell (American Thyroid Association (opens in a new tab)). Also call your doctor right away for chest pain, a rapid or irregular heartbeat, shaking, or trouble sleeping while taking thyroid hormone — these can mean the dose is too high (MedlinePlus (opens in a new tab)).
What does the thyroid do?
The thyroid is a small, butterfly-shaped gland at the front of your neck, a little larger than a quarter. It makes hormones that control how your body uses energy — so they touch nearly every organ, down to how fast your heart beats (NIDDK (opens in a new tab), NCI (opens in a new tab)). The pituitary gland in the brain sets the pace with thyroid-stimulating hormone (TSH): when thyroid hormone runs low, TSH rises, and when it runs high, TSH falls (American Thyroid Association (opens in a new tab)). Thyroid trouble comes in a few forms: too little hormone, too much, a gland that is enlarged, or lumps (nodules) in the gland. Some people have more than one.
Underactive thyroid (hypothyroidism)
Hypothyroidism means the thyroid doesn’t make enough hormone, so many body functions slow down. Nearly 5 in 100 Americans age 12 and older have it, though most cases are mild; it is much more common in women and in people over 60 (NIDDK (opens in a new tab)).
Hashimoto’s disease
The most common cause in the U.S. is Hashimoto’s disease (autoimmune thyroiditis), in which the immune system makes antibodies that damage the thyroid (NIDDK (opens in a new tab), American Thyroid Association (opens in a new tab)). It is 4 to 10 times more common in women, most often starts between ages 30 and 50, runs in families, and is more likely if you have another autoimmune condition such as celiac disease, lupus, rheumatoid arthritis, Sjögren’s syndrome or type 1 diabetes (NIDDK (opens in a new tab)). It can progress slowly over many years, and you may have no symptoms early on (American Thyroid Association (opens in a new tab)). The gland may swell into a goiter, which can cause a feeling of fullness in the throat (NIDDK (opens in a new tab)).
Other causes
Hypothyroidism can also follow thyroid surgery, radioactive iodine or radiation to the neck, thyroiditis (inflammation of the thyroid), some medicines — including lithium, amiodarone and certain cancer drugs — too little iodine, or damage to the pituitary gland; some babies are born without a working thyroid (American Thyroid Association (opens in a new tab)). Iodine deficiency is extremely rare in the United States (NIDDK (opens in a new tab)).
Symptoms
Symptoms develop slowly, so you may not notice them for months or even years. Common ones are tiredness, feeling cold, constipation, dry skin, dry or thinning hair, weight gain, low mood, trouble concentrating, muscle and joint aches, a hoarse voice, and heavy or irregular periods (NIDDK (opens in a new tab), NHS (opens in a new tab), American Thyroid Association (opens in a new tab)). Many of these are common and don’t necessarily mean a thyroid problem (NIDDK (opens in a new tab)); a blood test is the only way to know (American Thyroid Association (opens in a new tab)). See our Hair guide, Chronic Fatigue guide, Depression guide and Anemia guide for conditions that overlap. A thyroid check is also reasonable if you have high cholesterol (NIDDK (opens in a new tab); see our Cholesterol guide), and women with fertility trouble are often tested too (NIDDK (opens in a new tab); see our Female Problems guide).
Why treating it matters
Untreated, hypothyroidism can contribute to high cholesterol, high blood pressure, heart disease and heart failure, and problems in pregnancy; rarely it leads to myxedema coma (NIDDK (opens in a new tab)). See our Heart guide.
How it is diagnosed: the TSH test
- TSH: the best first test, an “early warning system.” A high TSH points to an underactive thyroid; a low TSH usually points to an overactive one (American Thyroid Association (opens in a new tab)).
- Free T4: measures the thyroid hormone your body can use. High TSH plus low free T4 means primary hypothyroidism. T3 is rarely needed to diagnose an underactive thyroid (American Thyroid Association (opens in a new tab), American Thyroid Association (opens in a new tab)).
- Thyroid antibodies (such as TPO): help find the cause; they are present in most people with Hashimoto’s disease (NIDDK (opens in a new tab)).
- Ultrasound: can show the size and features of the gland and rule out nodules (NIDDK (opens in a new tab)).
Tip: the supplement biotin can make thyroid blood tests look abnormal when they are normal. Stop it before testing — the American Thyroid Association says 2 days, and the levothyroxine label says at least 2 days (American Thyroid Association (opens in a new tab), FDA label, DailyMed (opens in a new tab)). FDA has also warned that biotin can cause falsely high or falsely low results on some lab tests (FDA guidance (opens in a new tab)).
Overactive thyroid (hyperthyroidism)
An overactive thyroid makes too much hormone, and body functions speed up. Symptoms include nervousness, irritability, trouble sleeping, tiredness and weakness, sensitivity to heat, a fast or irregular heartbeat, trembling, weight loss and sometimes a swollen neck (NHS (opens in a new tab)). About 4 in 5 people with an overactive thyroid have Graves’ disease (NHS (opens in a new tab)) — see our Graves’ Disease guide for the eye disease, treatment choices and thyroid storm in depth.
- Toxic nodule or toxic multinodular goiter: one or more usually benign nodules that make hormone on their own. A thyroid scan shows which areas are overactive. Medicine can control it but doesn’t fix the nodule, so surgery or radioactive iodine is usually suggested (American Thyroid Association (opens in a new tab)).
- Thyroiditis: inflammation can leak stored hormone, causing a temporary overactive phase followed by an underactive one. Painless (silent) and postpartum thyroiditis follow this pattern, and the overactive phase lasts about 1 to 3 months; about a third of people have both phases. Subacute thyroiditis, possibly viral, makes the thyroid painful. Most people recover normal function within 12 to 18 months, though some are left with a permanently underactive thyroid (American Thyroid Association (opens in a new tab)).
- Medicines such as amiodarone can also cause it (NHS (opens in a new tab)). Kelp supplements have too — see the Herbal section.
Treatment options are medicine that lowers hormone production, radioactive iodine or surgery (NHS (opens in a new tab)). A beta-blocker can control symptoms such as a fast heart rate (American Thyroid Association (opens in a new tab)). Stopping antithyroid medicine suddenly or missing doses can trigger thyroid storm (NHS (opens in a new tab), review, J Clin Endocrinol Metab 2026 (opens in a new tab)).
Goiter and thyroid nodules
A goiter is simply an enlarged thyroid. It doesn’t necessarily mean the gland is malfunctioning — it can occur with too much, too little or the right amount of hormone. Causes include iodine deficiency (a leading cause worldwide, but uncommon in the U.S.), Hashimoto’s disease, Graves’ disease and multinodular goiter (American Thyroid Association (opens in a new tab)). Goiters are usually painless and not serious, but should be checked; a goiter can cause a cough, a hoarse voice, a feeling that something is stuck in the throat, or trouble swallowing or breathing (NHS (opens in a new tab)).
A thyroid nodule is a lump of thyroid cells inside the gland. Nodules are very common — by age 60, about half of people have one — and more than 90% are benign. Most cause no symptoms and are found by chance on an exam or on imaging done for another reason; a few cause neck pain or, if large, trouble swallowing or breathing. Thyroid blood tests are usually normal even when a nodule is cancerous, so the evaluation relies on a neck exam, ultrasound and sometimes a fine needle biopsy (a thin needle takes cells for a pathologist to examine, often in the office). Benign nodules are watched with ultrasound every 6 to 12 months and a yearly exam (American Thyroid Association (opens in a new tab)). Giving thyroid hormone to shrink benign nodules or goiters doesn’t work in places with enough iodine, such as the U.S. (American Thyroid Association (opens in a new tab)).
Thyroid cancer
Fewer than 1 in 10 thyroid nodules is cancer (American Thyroid Association (opens in a new tab)). Thyroid cancer usually shows up as a painless lump and often causes no other symptoms; later signs can include hoarseness, trouble swallowing or breathing, and pain when swallowing (NCI (opens in a new tab), NHS (opens in a new tab)).
- Papillary (about 70–80% of cases) and follicular (about 10–15%) cancers are called differentiated; papillary tends to grow slowly and has an excellent outlook. Medullary (about 2%) sometimes runs in families, and anaplastic (under 2%) is the rare, aggressive form (American Thyroid Association (opens in a new tab)). Differentiated tumors can usually be cured; anaplastic ones grow fast and have a poorer chance of recovery (NCI (opens in a new tab)).
- Risk factors include being female, age 25 to 65, radiation to the head and neck in childhood, a history of goiter, and a family history of thyroid disease or thyroid cancer (NCI (opens in a new tab)). Radiation treatment for cancers such as Hodgkin’s disease or breast cancer that includes the head, neck or chest raises the risk; routine dental X-rays, chest X-rays and mammograms do not (American Thyroid Association (opens in a new tab)). See our Hodgkin Lymphoma guide and Cancer guide.
- Outlook: NCI’s SEER program reports a 98.3% five-year relative survival overall, 99.9% when the cancer is confined to the thyroid, 98.1% when it has spread to nearby lymph nodes, and 48.3% when it has spread to distant parts of the body. Statistics describe large groups and cannot predict one person’s course (NCI SEER (opens in a new tab)).
Side by side
Six approaches compared
For every condition we look at the same six approaches: what each involves, what it typically costs, and what a patient can realistically expect.
| Approach | What it involves | Estimated cost | What to expect |
|---|---|---|---|
| Conventional medicine (AMA) | Underactive: daily levothyroxine with regular TSH checks. Overactive: antithyroid medicine, radioactive iodine or surgery (see the Graves’ guide). Goiter and nodules: exam, ultrasound, biopsy and watchful follow-up. Cancer: surgery, sometimes radioactive iodine, then lifelong thyroid hormone. | Cost estimate being researched. | Strong evidence. Hypothyroidism can usually be well controlled with medicine, though most people take it for life. Most thyroid cancers have an excellent outlook. |
| Chiropractic | No role in treating thyroid disease. | About $55–$100 a follow-up visit and $90–$200 for a first visit without insurance; not a treatment for thyroid disease. | Nothing we found shows that it treats thyroid disease. MBHA advises no neck manipulation until a new neck lump has been checked. |
| Acupuncture | Fine needles, used alongside medical treatment, mainly for stress and comfort. | About $125–$230 for a first visit and $90–$185 for follow-ups; community clinics about $50–$90. | Little reliable research; one review says better-designed studies are needed. Not a replacement for thyroid medicine. |
| Herbal medicine | Ashwagandha, kelp, iodine and selenium are all promoted for the thyroid. Kelp and iodine supplements can cause harm; biotin spoils thyroid lab tests. | Cost estimate being researched. | Weak or mixed evidence. NCCIH does not recommend ashwagandha for people with thyroid disorders. Selenium may lower antibodies in Hashimoto’s, but its clinical value is unproven. |
| Massage therapy | Gentle relaxation massage, avoiding pressure on the front of the neck. | At one national chain, about $125–$160 for a 60-minute massage for non-members; memberships about $70–$90 a month. | May help you relax. Nothing we found shows it treats thyroid disease. |
| MBHA Wellness Coach | An MBHA Wellness Coach helps with a steady pill routine, supplement and lab preparation, sleep, stress, movement, follow-up and realistic expectations. | MBHA coaching cost estimate being researched. | Supports your medical care; one small trial found added yoga improved quality of life alongside levothyroxine. |
Approach 1 of 6
Conventional medicine (AMA)
An endocrinologist (hormone specialist) or your primary doctor usually leads care; a surgeon with thyroid experience is involved for nodules, cancer or some overactive thyroids. We don’t list doses — ask your doctor or pharmacist.
1. Underactive thyroid: levothyroxine
Hypothyroidism is treated by replacing the hormone your thyroid can’t make. The usual medicine, levothyroxine, is identical to thyroxine (T4), the hormone a healthy thyroid makes. It comes as a pill, a liquid or a soft gel capsule; the newer forms may help people with digestive problems that affect absorption (NIDDK (opens in a new tab)). Your doctor starts you on a low amount and adjusts it gradually (MedlinePlus (opens in a new tab)); the dose depends on factors such as your weight, age and other conditions (American Thyroid Association (opens in a new tab)). It may take several weeks to notice a change, and levothyroxine controls hypothyroidism but does not cure it (MedlinePlus (opens in a new tab)).
- Blood tests: a TSH test about 6 to 8 weeks after you start or change the dose, then usually at 6 months and once a year once you are on a steady dose (NIDDK (opens in a new tab)).
- Never stop or change it on your own. Taking too much can cause atrial fibrillation (an irregular heartbeat) or thinning bones (NIDDK (opens in a new tab); see our Osteoporosis guide). Most thyroid problems are permanent, so most people take thyroid hormone for life (American Thyroid Association (opens in a new tab)). Hypothyroidism that follows a viral or postpartum thyroiditis may go away (American Thyroid Association (opens in a new tab)).
- Stay on the same brand or manufacturer if you can; if it changes, tell your doctor so your levels can be rechecked (American Thyroid Association (opens in a new tab)).
- Missed doses: advice differs. MedlinePlus and the NHS say not to double up, while the American Thyroid Association says a once-daily missed dose can safely be made up with a double dose the next day (MedlinePlus (opens in a new tab), NHS (opens in a new tab), American Thyroid Association (opens in a new tab)). Ask your pharmacist what is right for you.
Timing and absorption: calcium, iron, coffee and more
Levothyroxine is usually taken once a day on an empty stomach, 30 minutes to an hour before breakfast (MedlinePlus (opens in a new tab), NHS (opens in a new tab)), with a full glass of water (MedlinePlus (opens in a new tab)). The NHS says to take it 30 to 60 minutes before your first meal or any caffeinated drink such as tea or coffee (NHS (opens in a new tab)). The American Thyroid Association says bedtime dosing is an alternative if that makes it easier to avoid food and other medicines; the key is to be consistent (American Thyroid Association (opens in a new tab)).
- Calcium and iron: take calcium carbonate (such as Tums) or an iron supplement at least 4 hours before or after levothyroxine (MedlinePlus (opens in a new tab)); the FDA label lists calcium carbonate and ferrous sulfate (iron) among products that can bind levothyroxine (FDA label, DailyMed (opens in a new tab)). Multivitamins with iron or calcium can have the same effect (NIDDK (opens in a new tab)).
- Coffee: NIDDK lists espresso coffee, grapefruit juice and soy among things that can affect absorption (NIDDK (opens in a new tab)). A 2021 systematic review found limited evidence that coffee, soy, fiber, calcium and iron all reduced absorption, and that leaving a gap between levothyroxine and these is an effective fix (review, Pharmaceuticals 2021 (opens in a new tab)).
- Other medicines: the NHS lists antacids and acid reducers such as omeprazole, some seizure and heart medicines, St John’s wort and biotin among those that may not mix well (NHS (opens in a new tab)). Tell your doctor and pharmacist about everything you take, including supplements; our Medication Safety guide has more.
T3 and “natural” thyroid
If you don’t feel better on levothyroxine alone, some doctors add liothyronine (T3) (American Thyroid Association (opens in a new tab)); the American Thyroid Association says a 3 to 6 month trial of the combination may be reasonable but that T3 alone is not indicated, because it is short-acting and can cause a fast heartbeat, insomnia and anxiety (American Thyroid Association (opens in a new tab)). Dried animal thyroid extracts vary from batch to batch, are harder to keep stable, and should not be used in pregnancy (American Thyroid Association (opens in a new tab)).
Thyroid hormone is not a weight-loss drug. The levothyroxine label carries a boxed warning: thyroid hormones should not be used for obesity or weight loss; at normal replacement doses they don’t reduce weight in people with normal thyroids, and larger amounts can cause serious or even life-threatening toxicity (FDA label, DailyMed (opens in a new tab), MedlinePlus (opens in a new tab)).
2. Overactive thyroid
Treatment is anti-thyroid medicine, radioactive iodine or surgery, with beta-blockers for symptoms (NHS (opens in a new tab), American Thyroid Association (opens in a new tab)). After radioactive iodine or surgery, you may need lifelong thyroid hormone (NHS (opens in a new tab), American Thyroid Association (opens in a new tab)). Our Graves’ Disease guide covers these in detail.
3. Goiter and nodules
A goiter caused by an under- or overactive thyroid is treated by treating that problem; many goiters with normal hormone levels need no treatment but need yearly monitoring, and surgery is considered if the goiter squeezes the airway (American Thyroid Association (opens in a new tab)). Benign nodules are watched with ultrasound; surgery is advised for nodules that are cancerous or highly suspicious, or that keep growing or look worrisome (American Thyroid Association (opens in a new tab)).
4. Thyroid cancer
Surgery is the first step: removing the affected lobe (lobectomy) or the whole thyroid. Some people then have radioactive iodine to destroy leftover thyroid tissue (American Thyroid Association (opens in a new tab)), and levothyroxine afterward replaces the lost hormone (MedlinePlus (opens in a new tab)). After cancer surgery, higher-than-usual thyroid hormone is sometimes used to keep cancer cells from growing, and your doctor monitors the heart and bones (American Thyroid Association (opens in a new tab)). Surgery has risks: temporary hoarseness in roughly 5–7% of people and, with total thyroidectomy, a 1–3% chance that all four parathyroid glands are damaged or removed, causing low calcium (American Thyroid Association (opens in a new tab)); choose an experienced thyroid surgeon. Lifelong follow-up with neck ultrasound and thyroglobulin blood tests looks for recurrence (American Thyroid Association (opens in a new tab)).
What it costs
Cost estimate being researched. Ask your doctor’s office and insurer what you will pay for blood tests, ultrasound, biopsy, medicine, radioactive iodine or surgery.
How well it works — what to expect
Hypothyroidism can be well controlled with thyroid hormone when you take it as directed and keep up your follow-up blood tests (NIDDK (opens in a new tab)). The American Thyroid Association also says there is no proven benefit to taking levothyroxine for symptoms that overlap with hypothyroidism when thyroid hormone levels are normal; if labs are normal, other causes deserve a look (American Thyroid Association (opens in a new tab)). For cancer, see the outlook figures above.
Approach 2 of 6
Chiropractic
Chiropractic has no role in treating thyroid disease. We found little research on the topic, and nothing we read shows that chiropractic care changes thyroid function, thyroid antibodies, nodules or cancer.
MBHA caution about neck work. If you see a chiropractor for neck or back pain, mention your thyroid condition. MBHA advises no neck manipulation or deep pressure until a new neck lump or swelling has been checked, and none after recent thyroid surgery or with a large goiter. NCCIH says serious side effects of spinal manipulation, such as strokes involving neck arteries, are very rare, and may be more likely in people with underlying health problems (NCCIH (opens in a new tab)).
A good chiropractor can still be a helpful second pair of eyes. One 2023 case report described a woman with known thyroid nodules whose lasting neck pain was eventually traced, after a chiropractic consultation led to imaging, to thyroid cancer that had spread; the authors urge follow-up when symptoms don’t resolve (case report, Cureus 2023 (opens in a new tab)). A single case proves little, but if neck pain or a lump doesn’t settle, get it checked. See also our Neck guide.
What it costs
Without insurance, about $55–$100 for a follow-up visit and $90–$200 for a first visit (The Pricer (opens in a new tab)).
Approach 3 of 6
Acupuncture
We found little reliable research on acupuncture for thyroid disease. A 2018 narrative review of 29 clinical projects (1,757 patients in several countries) reported symptom and lab improvements, with acupuncture alone or alongside other treatment, but concluded that more well-designed research is needed (review, J Integr Med 2018 (opens in a new tab)).
Some people use acupuncture for stress and general well-being, always alongside — never instead of — thyroid medicine. NCCIH says relatively few complications are reported, but some have come from non-sterile needles and improper treatment (NCCIH (opens in a new tab)). Choose a licensed acupuncturist; MBHA advises no needling over a thyroid nodule, a goiter or a healing surgical scar.
What it costs
About $125–$230 for a first private visit and $90–$185 for follow-ups; community clinics about $50–$90 (The Pricer (opens in a new tab)).
Approach 4 of 6
Herbal medicine
Avoid kelp, seaweed and iodine supplements unless your doctor prescribes them. With Hashimoto’s disease or other autoimmune thyroid disease you may be sensitive to iodine; foods with large amounts such as kelp or dulse, and iodine supplements, can cause or worsen hypothyroidism (NIDDK (opens in a new tab)). Excess iodine from the diet or supplements can harm the thyroid (American Thyroid Association (opens in a new tab)). Some cough syrups contain iodine too (NIDDK (opens in a new tab)).
Kelp
Kelp-containing weight-loss or “thyroid support” tablets can backfire. One 2019 case report describes a 70-year-old woman with no thyroid disease who developed temporary hyperthyroidism about three months after taking kelp tablets; her thyroid returned to normal after she stopped them and took antithyroid medicine for three months. The authors advise that kelp supplements be taken only under a doctor’s supervision with monitoring of thyroid function (case report, Medicine 2019 (opens in a new tab)).
Ashwagandha
This Ayurvedic herb is promoted for the thyroid and for stress. The evidence is mixed and the cautions are real:
- A small 2018 trial of 50 people with subclinical hypothyroidism found 8 weeks of ashwagandha root extract improved TSH, T3 and T4 compared with placebo; the authors called it a pilot study (trial, J Altern Complement Med 2018 (opens in a new tab)). It was short, at one hospital, and has not been matched by larger trials we found.
- Case reports describe thyrotoxicosis (too much thyroid hormone) after ashwagandha, in a healthy woman who took it for chronic fatigue (case report, Ned Tijdschr Geneeskd 2005 (opens in a new tab); article in Dutch), in a 73-year-old woman who used it to treat her hypothyroidism (case report, Cureus 2022 (opens in a new tab)) and in a healthy man (case report, Cureus 2024 (opens in a new tab)); all improved after stopping it.
- NCCIH says ashwagandha is not recommended for people with autoimmune or thyroid disorders and may interact with thyroid hormone medicines (NCCIH (opens in a new tab)).
In short: don’t take ashwagandha for the thyroid without your doctor’s knowledge, and have your TSH checked if you do. We give no amounts.
Selenium
Selenium is covered in “Iodine, selenium and biotin” below. The short version: it may lower thyroid antibodies in Hashimoto’s disease, but whether that helps you feel better is unproven, and NIDDK says no specific guidance is currently available (NIDDK (opens in a new tab)).
Biotin, and supplements in general
Biotin, common in “hair, skin and nails” products, can throw off thyroid blood tests; stop it for 2 days before testing and tell your doctor you take it (American Thyroid Association (opens in a new tab), FDA label, DailyMed (opens in a new tab)). Herbs and supplements can interfere with how medicines work and can act like drugs; “natural” doesn’t mean safe (American Thyroid Association (opens in a new tab), NCCIH (opens in a new tab)). Tell your doctor and pharmacist about every supplement you take. Supplement costs: cost estimate being researched.
Approach 5 of 6
Massage therapy
Nothing we found shows that massage treats thyroid disease or changes thyroid hormone levels, but gentle massage may help you relax. NCCIH says the risk of harm appears low, though rare serious problems have been reported, mostly with vigorous types such as deep tissue massage (NCCIH (opens in a new tab)).
- No pressure on the front of the neck. This is MBHA advice for everyone with a known nodule, a goiter, thyroid cancer or recent thyroid surgery — and for anyone with a new neck lump until a doctor has looked at it.
- Choose gentle, relaxing work on the back, shoulders, scalp, hands and feet. Tell your therapist about any surgical scar, and let them know if heat bothers you if your thyroid is overactive.
What it costs
Prices vary by location. At one national chain, franchise price lists show about $125–$160 for a 60-minute massage for non-members and about $65–$90 for members, whose memberships run about $70–$90 a month (The Pricer (opens in a new tab)). Tips are extra.
Approach 6 of 6
MBHA Wellness Coach
An MBHA Wellness Coach can help you build habits that support your treatment, alongside your doctor.
- A steady pill routine: same time and same way every day, on an empty stomach with water, with calcium, iron and coffee kept clear of it (American Thyroid Association (opens in a new tab), MedlinePlus (opens in a new tab), NHS (opens in a new tab)).
- Lab-day preparation: pause biotin for 2 days before thyroid blood tests and keep an up-to-date list of every medicine and supplement (American Thyroid Association (opens in a new tab), American Thyroid Association (opens in a new tab)).
- Follow-up: keep your TSH checks (6 to 8 weeks after any change, then usually once a year) (NIDDK (opens in a new tab)), and ask your doctor to feel your neck at regular check-ups — the best way to find a nodule (American Thyroid Association (opens in a new tab)).
- Sleep: adults 18 to 60 need 7 or more hours. Keep regular sleep times and a cool, quiet bedroom, turn off devices 30 minutes before bed and avoid afternoon or evening caffeine (CDC (opens in a new tab)).
- Movement and stress: in a 2025 randomized trial of 134 people with hypothyroidism taking levothyroxine, adding six months of online yoga led to greater improvements than medicine alone; the comparison group was a waiting list (trial, J Med Internet Res 2025 (opens in a new tab)).
- Realistic expectations about weight: hypothyroidism may explain roughly 5 to 10 pounds, mostly salt and water, and once your levels are normal your ability to gain or lose weight is the same as anyone’s (American Thyroid Association (opens in a new tab)). An MBHA Weight Control guide is planned.
- Bone and heart health: too much thyroid hormone can thin bones and cause an irregular heartbeat, so report palpitations and keep appointments (NIDDK (opens in a new tab)).
MBHA coaching cost estimate being researched.
Another approach
Subclinical thyroid disease: the evidence, honestly
“Subclinical” means the TSH is outside the normal range while the thyroid hormones themselves (T4 and T3) are still normal. Whether to treat is genuinely debated.
Subclinical hypothyroidism (mildly high TSH)
- With only a slightly elevated TSH you may or may not need medicine right away (American Thyroid Association (opens in a new tab)). In older adults, a mild TSH elevation can be part of normal aging and does not necessarily need treatment (American Thyroid Association (opens in a new tab)).
- The 2017 TRUST trial gave levothyroxine or placebo to 737 adults aged 65 and over with persistently raised TSH. After a year there was no difference in thyroid symptoms or tiredness, and no other benefits were seen (trial, N Engl J Med 2017 (opens in a new tab)). It tested older adults only, so it can’t answer the question for younger people.
- A Cochrane review of 12 small trials (350 people) found no statistically significant improvement in symptoms, mood or quality of life, and no trial measured effects on heart disease or death. The authors noted real controversy about whether to treat (Cochrane review, 2007 (opens in a new tab)).
- A 2025 JAMA review says screening people without symptoms is not recommended (review, JAMA 2025 (opens in a new tab)).
Subclinical hyperthyroidism (low TSH)
Many people have no symptoms, and not all cases need treatment right away; you and your doctor decide based on the cause, symptoms, age and conditions such as weak bones or heart problems (American Thyroid Association (opens in a new tab)). Without symptoms, older patients are often just monitored (American Thyroid Association (opens in a new tab)). A 2025 review links it to atrial fibrillation, osteoporosis and dementia, and notes that the question of when treatment helps is still being studied (review, Curr Opin Endocrinol Diabetes Obes 2025 (opens in a new tab)).
Practical takeaway: a borderline result is a reason for a repeat test and a conversation, not automatically for a prescription.
Another approach
Thyroid disease, pregnancy and the postpartum
Left untreated, hypothyroidism in pregnancy can affect both mother and baby, but thyroid medicine is safe to take in pregnancy (NIDDK (opens in a new tab)). Untreated, it raises the chance of pre-eclampsia, birth defects, premature birth and miscarriage (NHS (opens in a new tab)).
- If you take levothyroxine: many women need a higher dose during pregnancy, so contact your doctor right away when you find out you’re pregnant (NIDDK (opens in a new tab)); your TSH is checked during pregnancy, and the dose goes back to the pre-pregnancy dose right after delivery (FDA label, DailyMed (opens in a new tab)).
- Iodine: you need enough iodine in pregnancy because the baby gets it from you, but too much can cause a goiter in the baby; ask your doctor how much is right (NIDDK (opens in a new tab)).
- After the baby: postpartum thyroiditis can cause an overactive phase followed by an underactive one (American Thyroid Association (opens in a new tab)); see Overactive thyroid above.
- Overactive thyroid: see our Graves’ Disease guide for pregnancy and antithyroid medicine.
An MBHA pregnancy guide is planned.
Another approach
The two thyroid emergencies
Myxedema coma is the extreme end of untreated hypothyroidism: body functions slow to a life-threatening point and it needs immediate treatment (NIDDK (opens in a new tab)). It is very rare — a 2025 review of nearly 700 cases estimated about 0.12 cases per million people per year — but fatal for a large share, with an overall mortality of 38.8% in that review. Nearly 9 in 10 patients had altered mental status, about 7 in 10 had low body temperature, and about two-thirds had a heart rate under 60. Most cases had an identifiable precipitating factor (review, Thyroid Res 2025 (opens in a new tab)). Treatment is in an intensive care unit (review, JAMA 2025 (opens in a new tab)), with thyroid hormone (review, Endocr Pract 2025 (opens in a new tab)); the levothyroxine label says to use a form made for injection into a vein rather than oral tablets (FDA label, DailyMed (opens in a new tab)). The best prevention is taking your thyroid medicine and keeping appointments. If someone with thyroid disease is confused, very cold and unusually drowsy, call 911.
Thyroid storm is the opposite: an extreme flare of untreated or poorly controlled hyperthyroidism. Common triggers are infection, surgery, injury, suddenly stopping antithyroid medicine, severe stress and iodine exposure. It causes high fever, a racing heart, agitation or confusion, vomiting and diarrhea, and it needs immediate intensive treatment; mortality is 5% to 25% even with care (review, J Clin Endocrinol Metab 2026 (opens in a new tab), NHS (opens in a new tab)). Call 911. Our Graves’ Disease guide covers storm in more detail.
Another approach
Iodine, selenium and biotin: the facts
Iodine
Your thyroid needs iodine, found in some foods and in iodized salt, to make its hormones (NCI (opens in a new tab)). Too little causes goiter and hypothyroidism, which is why it remains common worldwide, but it is rare in the U.S. (American Thyroid Association (opens in a new tab), NIDDK (opens in a new tab)). The opposite problem matters more here: too much iodine can cause or worsen thyroid disease, especially in people with autoimmune thyroid conditions (NIDDK (opens in a new tab)). The American Thyroid Association says avoiding iodine or loading up on it are both commonly recommended but are generally not beneficial; iodine supplements are recommended in certain situations such as pregnancy (American Thyroid Association (opens in a new tab)). Ask your doctor before changing your iodine intake.
Selenium
Selenium is a trace mineral involved in thyroid hormone making. For Hashimoto’s disease:
- A 2014 Cochrane review of four trials (463 people) at unclear to high risk of bias found selenium lowered thyroid antibody levels, but called the evidence incomplete and not reliable enough to guide treatment (Cochrane summary, Eur Thyroid J 2014 (opens in a new tab)).
- A 2024 meta-analysis of 35 studies found selenium lowered TSH (in people not taking thyroid hormone) and TPO antibodies, with no more side effects than controls, and rated the certainty of evidence as moderate. Hormone levels such as free T4 did not change (meta-analysis, Thyroid 2024 (opens in a new tab)).
- NIDDK says researchers are studying selenium and vitamin D, but no specific guidance is currently available (NIDDK (opens in a new tab)).
So lower antibodies are likely; a proven benefit to how you feel is not. Ask your doctor whether it fits you; we give no amount.
Biotin
Biotin is the one supplement that can fool your thyroid tests. It can make results look abnormal when they are normal; stop it at least 2 days before testing and tell your doctor (American Thyroid Association (opens in a new tab), American Thyroid Association (opens in a new tab), FDA label, DailyMed (opens in a new tab)). FDA has also warned that people taking more than the recommended daily intake can get falsely high or falsely low results on some lab tests (FDA guidance (opens in a new tab)).
Another approach
When symptoms overlap with other conditions
Fatigue, weight change, low mood, feeling cold or anxious, and hair thinning all have many causes besides the thyroid, so a normal TSH is useful information. If your thyroid labs are normal, look at other causes with your doctor (American Thyroid Association (opens in a new tab)). Related MBHA guides: Hair, Chronic Fatigue, Depression, Anemia, Cholesterol, Heart, Female Problems and Graves’ Disease. An MBHA Weight Control guide is planned.
Member stories
Living with Thyroid Problems (Underactive, Overactive, Nodules & Cancer)? Share your experience
Real experiences help others choose. Tell us what you tried — conventional medicine, chiropractic, acupuncture, herbs, massage or coaching — what it cost and what changed.
Sources
- NIDDK — Hypothyroidism (underactive thyroid) (opens in a new tab)
- NIDDK — Hashimoto's disease (opens in a new tab)
- American Thyroid Association — Hypothyroidism (opens in a new tab)
- American Thyroid Association — Hashimoto's thyroiditis (opens in a new tab)
- American Thyroid Association — Thyroid hormone treatment (opens in a new tab)
- American Thyroid Association — Thyroid function tests (opens in a new tab)
- American Thyroid Association — Thyroid nodules (opens in a new tab)
- American Thyroid Association — Goiter (opens in a new tab)
- American Thyroid Association — Thyroiditis (opens in a new tab)
- American Thyroid Association — Toxic nodule and toxic multinodular goiter (opens in a new tab)
- American Thyroid Association — Thyroid cancer (papillary and follicular) (opens in a new tab)
- American Thyroid Association — Thyroid surgery (opens in a new tab)
- American Thyroid Association — Thyroid and weight (opens in a new tab)
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- CDC — About sleep (opens in a new tab)
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- Sharma et al. — Efficacy and safety of ashwagandha root extract in subclinical hypothyroid patients: a double-blind, randomized placebo-controlled trial, J Altern Complement Med, 2018 (PubMed) (opens in a new tab)
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- Gherbon et al. — Transient hyperthyroidism following the ingestion of complementary medications containing kelp seaweed: a case report, Medicine, 2019 (PubMed) (opens in a new tab)
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- Cheong et al. — Thyroid cancer presenting as neck pain at a chiropractic clinic, Cureus, 2023 (PubMed) (opens in a new tab)
- NCCIH — Ashwagandha (opens in a new tab)
- NCCIH — Spinal manipulation: what you need to know (opens in a new tab)
- NCCIH — Acupuncture: effectiveness and safety (opens in a new tab)
- NCCIH — Massage therapy: what you need to know (opens in a new tab)
- NCCIH — Using dietary supplements wisely (opens in a new tab)
- The Pricer — Chiropractor and chiropractic treatment cost (opens in a new tab)
- The Pricer — Acupuncture cost (opens in a new tab)
- The Pricer — Massage Envy cost (one national chain) (opens in a new tab)
This page is for education only and is not medical advice. Costs are typical U.S. ranges and estimates; yours will depend on your provider, location and insurance. Talk with your doctor before starting, stopping or combining any treatment. In an emergency, call 911. See our disclaimer.
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