Tags: Disease.
Hypothyroidism (/ˌhaɪpɵˈθaɪərɔɪdɪzəm/) from hypo- (under in Greek) and thyroid (the thyroid gland) often called underactive thyroid is a common endocrine disorder in which the thyroid gland does not produce enough thyroid hormone. It can cause a number of symptoms such as tiredness poor ability to tolerate cold and weight gain. In children hypothyroidism leads to delays in growth and intellectual development which is called cretinism in severe cases.