Thyroid diseases occur when your thyroid over- or underproduces these hormones. Debra Margulies, MD, an endocrinologist at Summit Health, answers questions about thyroid diseases called hypothyroidism and hyperthyroidism. She explains...

The thyroid is a small butterfly-shaped gland found at the base of your neck, just below the Adam's apple. The thyroid gland makes thyroid hormone that travels in your blood...

An estimated 20 million Americans have some form of thyroid disease, but up to 60 percent of those with the disease are unaware of their condition. Although many causes of...