Sweat hair does not usually go away on its own when it grows. Sweat hair is one of the hairs that normally grows and exists on the human body and serves to keep the body warm and cool as well as expel sweat. Under normal circumstances, sweat hair will not disappear on its own. If you have hirsutism or excessive hair growth, you can go to the hospital for professional elimination. Genetic factors, long-term use of hormonal drugs, certain diseases are one of the causes of excessive sweating, if the patient has excessive hair phenomenon, it is recommended to go to the hospital in time for examination to find the cause of the disease. It is not recommended to eliminate the excessive sweat hair by oneself blindly, it is recommended to go to the hospital for examination to make sure that there is no pathological change, and then eliminate it.