The thyroid is part of the body's endocrine system, which is composed of various glands that secrete hormones into the body. These hormones affect different organs in the body. Among the hormones produced by the thyroid are those that help to regulate the body's metabolism.

Endocrinology is a medical specialty that deals with the endocrine system, including the thyroid gland. An endocrinologist is a physician who specializes in treating disorders of the endocrine system, such as those affecting the thyroid as well as diabetes.

To find a physician who specializes in endocrinology, visit our Find A Doctor tool.