what causes thyroid to enlarge
Some of the common causes of Enlarged thyroid gland may include: 1  Iodine deficiency. 2  Hypothyroidism. 3  Hyperthyroidism. 4  Autoimmune thyroid disease. 5  Graves' disease. 6  more causes...Â».
Hashimoto's thyroiditis is the most common cause of hypothyroidism. Learn about the basics of hypothyroidism in our hypothyroidism slideshow. HypothyroidismThe thyroid gland is always enlarged in Hashimoto's thyroiditis, although only one side may be enlarged enough to feel.