Hypothyroidism is the abbreviation of hypothyroidism. Hypothyroidism can present with low basal metabolic rate syndrome, mucous edema face, neurological system, cardiovascular system and so on. 1. Low basal metabolic rate syndrome: patients may show fatigue, slow movement, drowsiness, memory loss, poor concentration, fear of cold, no sweat, low body temperature, etc. 2. Mucous edema face: manifested as facial swelling, dysphonia, cyanosis, pallor, thickening of nose and lips, dry and thinning hair, etc. 3. Nervous system: manifested by decreased comprehension and memory, dullness of eyesight, hearing, touch and smell, tinnitus and dizziness. 4. Cardiovascular system: manifested by decreased heart rate, weak heart sound, decreased cardiac output, pericardial effusion, etc. If the above symptoms of hypothyroidism appear, it is recommended to seek medical treatment in time.