Graying of male hair may be caused by physiological factors such as aging, or it may be caused by diseases such as albinism and mottled disease. 1. Physiological factors: With age, older people’s hair will gradually turn gray, which is a normal phenomenon. Secondly, physiological factors such as prolonged overwork and stress may also cause men’s hair to turn gray. 2. Albinism: Albinism is a single-gene genetic disease due to gene mutation, resulting in abnormal melanin production, and the patient’s symptoms are mainly manifested as lighter skin color, white hair, and so on. 3. Pemphigus: Pemphigus is a hereditary disease characterized by a reduction in local skin and hair pigmentation, and patients mainly manifested as skin white spots, forehead white hair and other symptoms. There are many reasons why men’s hair turns white, after excluding physiological factors, it is recommended that patients go to the hospital in a timely manner, carry out relevant examinations to clarify the cause of the disease, and standardize the treatment under the guidance of the doctor.