Sweating from the buttocks may be caused by physiological factors such as tight underwear and hot weather, or it may be caused by diseases such as hyperhidrosis and hyperhidrosis. 1. Physiological factors: if the daily wear of clothing is too tight or hot weather, strenuous exercise, etc., may trigger buttocks sweating. 2. Hyperhidrosis: its causes are mostly related to heredity, diseases and medications, and its clinical manifestation is an abnormal increase in sweating of the whole body or local area. If you suffer from hyperhidrosis, you may experience excessive sweating in the buttocks. 3. Odorant Sweat Disorder: its causes are mostly related to the abnormal secretion function of the top secretion glands, bacterial decomposition and other factors, high temperature, environment and other factors may also induce the disease. Patients will appear local sweating, pungent odor and other symptoms, commonly in the armpits, vulva and anus and other places. The cause of excessive sweating in the buttocks is not unique, after excluding physiological factors, it is recommended that the patient go to a regular hospital for consultation to clarify the cause of the disease.