Hashimoto's thyroiditis is a chronic lymphocytic thyroiditis. The typical manifestation of Hashimoto's thyroiditis is chronic diffuse goiter, but the patient is asymptomatic. The patient's thyroid will show diffuse, painless mild to moderate enlargement, firm texture, slight tenderness upon pressure, local compression in the neck, and generally not very pronounced systemic symptoms, often with discomfort in the throat. Thyroid pain or tenderness in Hashimoto's thyroiditis is still quite rare; if pain is present, differentiation from subacute thyroiditis is necessary.