An enlarged thyroid, also known as a goiter, is a condition in which the thyroid gland becomes abnormally large. The thyroid gland is a small, butterfly-shaped gland located in the front of the neck. It produces hormones that regulate metabolism, growth, and development.
There are many different causes of an enlarged thyroid, including iodine deficiency, autoimmune disorders, and certain medications. In some cases, an enlarged thyroid can be a sign of thyroid cancer. Symptoms of an enlarged thyroid can vary depending on the size of the goiter. Small goiters may not cause any symptoms, while larger goiters can cause difficulty swallowing, breathing, or speaking.