Plus, when to see a doctor.

A thyroid-stimulating immunoglobulin (TSI) test is a blood test that can help diagnose Graves’ disease, an autoimmune condition that causes an overactive thyroid. A TSI test measures levels of TSIs in ...

Subclinical hyperthyroidism means that a person has low or undetectable levels of thyroid-stimulating hormone (TSH) with normal levels of free thyroid hormones. It usually does not cause symptoms. The ...

Accurately diagnosing thyroid function is critical to avoid harms of unnecessary treatment. This study found that age-, sex-, and race-specific reference intervals reclassified nearly half of patients ...

If your mysterious weight loss, sudden intolerance to heat, and noticeably irregular period has you scouring the internet for the reasons why, you’ve probably wondered if your symptoms are the result ...

Treatments for hyperthyroidism can stop the overproduction of thyroid hormones. But you’ll need to take medications to manage your thyroid for the rest of your life. Hyperthyroidism, or overactive ...

The thyroid, small, butterfly-shaped, sitting quietly at the front of your neck, quietly runs the show for many of your body’s most important function.