Sweating in the elderly may be due to physiological causes such as environmental factors or pathological causes such as hyperthyroidism, diabetes, tuberculosis, etc. 1. Physiological reasons: If you are in a hot environment or clothing is too thick, the human body needs to sweat to dissipate heat, there will be the phenomenon of the elderly sweating. 2. Pathological reasons (1) If you suffer from hyperthyroidism, due to excessive secretion of thyroid hormones, the body’s metabolism is accelerated, and increased sweating can occur. (2) Diabetes mellitus may be complicated by autonomic neuropathy, which can cause increased sweating when the sympathetic nerves are abnormally excited. (3) When suffering from tuberculosis, the symptoms of night sweating caused by infection may appear, which is manifested as sweating while sleeping. In addition to the above, there are other conditions that may lead to sweating in the elderly, such as Hodgkin’s disease, etc. If physiological factors can be excluded, it is recommended to go to the hospital for examination, and follow the doctor’s instructions for timely and targeted treatment, so as not to delay the course of the disease.