There are many reasons for excessive sweating in summer, such as physical weakness, hypoglycemia, hyperthyroidism and so on. 1. Weakness: If one’s body is weak, then there may be a situation where there is a lot of sweat in the summer, and one should pay attention to strengthening the body, and usually the symptoms will gradually disappear after strengthening the body. 2. Hypoglycemia: Hypoglycemia patients due to sympathetic excitation, can be accompanied by sweating, hunger, panic phenomenon, especially in the summer weather is hot, some people may appear the phenomenon of loss of appetite, resulting in the aggravation of the symptoms of hypoglycemia, so the performance of sweating, panic and other phenomena. 3. Hyperthyroidism: Hyperthyroidism can also lead to the phenomenon of excessive sweating, but it is not limited to the summer, hyperthyroidism patients body metabolism is exuberant, the phenomenon of sweating may occur. There are many reasons why summer sweat is particularly high, and after the symptoms, it is recommended to go to the hospital in time to improve the examination, and take standardized treatment according to the doctor’s instructions, not to ignore the symptoms, and take it lightly.