Question: which disorder is a common form of hypothyroidism
Answer: Hypothyroidism Synonyms Underactive thyroid , low thyroid , hypothyreosis Molecular structure of thyroxine , the deficiency of which causes the symptoms of hypothyroidism Pronunciation / ˌhaɪpəˈθaɪərɔɪdɪzəm , - poʊ - / Specialty Endocrinology Symptoms Poor ability to tolerate cold , feeling tired , constipation , depression , weight gain Complications During pregnancy can result in cretinism in the baby Usual onset > 60 years old Causes Iodine deficiency , Hashimoto 's thyroiditis Diagnostic method Blood tests ( thyroid - stimulating hormone , thyroxine ) Similar conditions Depression , dementia , heart failure , chronic fatigue syndrome Prevention Salt iodization Treatment Levothyroxine Frequency 0.