As a member of the human organ family, the thyroid gland has been working diligently every day since birth to provide the necessary daily food for the family – thyroid hormones. Although he is usually honest and hardworking, he is not a maniac. Once he turns into a rage mode (hyperthyroidism), he often disowns all his relatives and may cause different degrees of damage to his brothers (other body systems and organs) in a minute. So, what exactly are the dangers of hyperthyroidism? Here, let’s count all its crimes. Crime 1 Goiter Thick neck, mostly bilateral and symmetrical, some of them can hear murmurs and tremors to touch. Crime 2 hypermetabolic syndrome Fear of heat, easy to sweat, rapid heartbeat, panic, easy to be hungry, just eat but not fat or even weight loss. Offense III Nervous system abnormality Easily agitated, temperamental, nervous and anxious, poor concentration of thought, insomnia, easy hand tremor when writing or holding hands flat. Offense 4 Eye disorders Retreating eyelids, widening of eye fissures, edema of eyelids, protrusion of eyeballs outward, reduced blinking, exposure of the upper whites of the eyes when the eyes look downward, inability to wrinkle the skin of the forehead when the eyes look upward. Offense V Cardiovascular damage Rapid heartbeat, shortness of breath, irregular heartbeat, abnormal blood pressure (elevated upper pressure, normal or low lower pressure). Crime 6 Digestive system abnormalities Appetite, barely eating without gaining weight or even losing weight, increased frequency of stools, easy diarrhea. Crime 7 Reproductive system abnormalities Irregular menstruation, abnormal menstrual flow or even menopause in women, and possible impotence in men. Offense VIII Blood system abnormalities Anemia, decreased white blood cells. Offense IX Anterior tibial mucinous edema Swelling of the anterior side of the lower leg with thick, dark purplish-red surface skin and no depression under pressure. Offense X Abnormalities of the motor system Muscle weakness and easy exertion.