Signs and symptoms of an iodine deficiency can include neck swelling or goiter, weight gain, fatigue, weakness, hair loss, and more. Iodine deficiency can also cause pregnancy complications. Iodine is ...

Goiter is an abnormal enlargement of the thyroid gland, the butterfly-shaped gland at the base of the neck. While iodine deficiency is a major global cause, both too little and too much iodine can ...

Thyromegaly is a disorder in which the thyroid gland — the butterfly-shaped gland in the neck — becomes abnormally enlarged. Thyromegaly is more commonly known as a goiter. It’s most often caused by ...