Sweating on the hands is related to environmental factors, medications and diseases, which should be analyzed in the light of different factors. 1. Environmental factors: summer weather is hot, a little activity will be a lot of sweat, some people have developed sweat glands in the hand, manifested as sweaty hands, which is a normal phenomenon, in the seasonal changes or in the shade can be relieved. 2. Drug factors: patients taking antidepressant drugs for a long time, such as selective 5-hydroxytryptamine reuptake inhibitors, such as sertraline, etc. may lead to sympathetic nervous system dysfunction and thus sweaty hands, if it does not affect the life, work can not be dealt with, and if the impact of the need to consult a medical professional to consider replacing the drug and other ways to improve. 3. Disease factors: common hyperthyroidism, diabetes mellitus, etc., due to elevated levels of thyroid hormones and autonomic nervous system dysfunction leading to excessive sweating, patients often start in the hands, and then develop into a serious sweating all over the body, the need to actively treat the primary disease. There may also be other reasons, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, give targeted treatment or treatment.