Scalp oil may be caused by heavy dampness, but it may also be due to kidney yin deficiency, or poor hygiene, improper diet and other physiological factors. From the perspective of traditional Chinese medicine, when the human body is heavy with dampness, it will cause the spleen to lose healthy transportation, affecting the discharge of fluids, resulting in water and moisture coagulation in the body, and then there will be scalp oil, so scalp oil may be caused by heavy dampness. However, there are many reasons for scalp oil, not all of which are caused by heavy dampness. Usually, you also need to consider is caused by kidney yin deficiency and fire, deficiency of kidney yin, deficiency of internal disturbance of heat, heat gradually for fire, and see waist pain, tinnitus, hot flashes and other conditions. In addition, it may also be caused by physiological factors such as not paying attention to the hygiene of the head, or eating too much greasy food. To summarize, if there is a long-term scalp oil, it is recommended that the patient go to the hospital in time, by the doctor to identify the symptoms and treatments.