what is viral thyroiditis
Thyroiditis refers to several disorders that cause an inflammation of the thyroid, a gland located in the front of your neck below your Adam's apple. Possibly caused by a viral infection. 2  Causes pain in the thyroid and symptoms of hyperthyroidism, followed by hypothyroidism. 3  Symptoms improve within a few months. 4  There is a slight chance of permanent hypothyroidism, which can be treated.