The total triiodothyronine (T3) test is one of several tests used to diagnose thyroid disorders. T3 is an active thyroid hormone that your body creates by converting thyroxine (T4) into ...

Thyroid peroxidase (TPO) is an enzyme made by your thyroid, the butterfly-shaped gland located in the front of your neck. The thyroid gland uses TPO along with iodine to generate the thyroid hormones ...

What does your thyroid do? Your thyroid gland influences almost all of the metabolic processes in your body through the hormones it produces. Your thyroid gland is part of your endocrine system. When ...

Around 12% of the United States population will develop some type of thyroid condition in their lifetime. An estimated 20 million Americans are living with some form of thyroid disease. This is an ...

Doctors may recommend a biopsy to obtain a sample from a thyroid nodule. Testing the sample in a laboratory can help indicate whether the nodule is cancerous or benign. Though most tend to be benign, ...

Thyroid eye disease (TED), also known as Graves’ ophthalmopathy or Graves’ orbitopathy, is an autoimmune disease that may affect the appearance and function of one or both eyes. In thyroid eye disease ...