Thyroid Problems, Explained

If your thyroid–a butterfly-shaped gland in the neck that helps control metabolism–is underactive, you may experience weight gain, constipation, cold sensitivity, or fatigue (hypothyroidism). If it's overactive, you may lose weight quickly, sweat a lot, have a fast heartbeat, or feel nervous or moody (hyperthyroidism). Luckily, thyroid treatments are often effective.

Featured Stories

19 Signs Your Thyroid Isn’t Working Right

Crabby, gaining weight, and unable to concentrate? It could be a problem with that little gland in your neck.
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11 Celebs With Thyroid Disease–and How They Knew Something Was Wrong

Don’t ignore extreme exhaustion and unexplained fluctuations in weight. They could signal trouble with a tiny organ in your neck that keeps your metabolism humming along.
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9 Things You Need to Know About Your Thyroid

Got weight gain or unexplained fatigue? That butterfly-shaped gland in your neck may be to blame. Here's what it controls, how to tell if it's healthy—and how to keep it that way.
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15 Thyroid Cancer Facts Everyone Should Know

Thyroid cancer diagnoses are on the rise, and most cases are in younger adults. Here's what you should know about detection, treatment, and recovery.
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If You Get Frequent Headaches, You May Want to Have Your Thyroid Tested

New research has found that people with headache disorders (especially migraines) are more likely to be diagnosed with hypothyroidism.
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More on Thyroid

I Thought My Exhaustion Was Normal After Giving Birth—but It Was Actually a Sign of Thyroid Cancer

New mom Amy Odell was stunned to learn she had thyroid cancer: "I was so consumed with my baby and his well-being that I neglected to consider my own health."
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What Every Woman Should Know About Her Thyroid Gland

Your thyroid gland plays a role in nearly every bodily process. Learn how it works—plus the signs that something may be amiss.
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How Breastfeeding Helped Jenny Mollen Discover She Had a Thyroid Condition

And what she’s learned since welcoming baby No. 2.