1. Weight loss and weight loss: You can lose more than 10 kilograms in one month. 2. Palpitation and tachycardia: Sustained tachycardia, occurring day and night. 3. Afraid of heat and sweating more: Under different temperature conditions, they are afraid of heat and sweat more than other people, and their palms and skin are often moist. 4. Hyperappetite: The appetite is particularly good and the appetite is obviously more than that of ordinary people. 5. General fatigue: muscle weakness and easy fatigue. 6. Diarrhea and increased frequency of bowel movements: The number of bowel movements per day is usually 2-5 times. 7. Emotional and easily agitated: Often angry over trivial matters, easily agitated and accompanied by insomnia. 8. Exophthalmos: The eyes are easily tired when seeing things. In severe cases, the eyes cannot be closed tightly when sleeping, resulting in double vision. 9. Endocrine disorders: There is hair loss, and female patients are accompanied by irregular menstruation. 10. Goiter: The neck becomes significantly thicker. If you find that your symptoms appear in the above six or more, you should go to the hospital for examination. Because you probably have hyperthyroidism