Sweating is likely to be hyperhidrosis, the causes of which can be categorized into organic diseases and functional disorders. 1. Organic diseases (1) Endocrine system diseases: such as hyperthyroidism, diabetes mellitus, pituitary hyperfunction. (2) Neurological diseases: such as concussion, hemiplegia, metastatic brain tumor and long-term significant debilitating diseases. (3) Infectious diseases: such as malaria, tuberculosis, etc. 2. Functional disorder: Functional hyperhidrosis is mainly related to autonomic dysfunction, generally more mental sweating, caused by high emotional stimulation, due to sympathetic dysregulation. Whenever emotional impulses and nervous tension, emotional fluctuations increase nerve impulses, resulting in increased acetylcholine secretion, the palms of the hands can immediately sweat a lot. Hand sweating patients should go to the hospital in time, under the guidance of the doctor standardized treatment.