Frequent combing is generally able to stimulate healthy hair follicles to produce hair, while also promoting blood circulation in the hair, thus improving the nutritional status of the hair, thus achieving the purpose of hair nourishment, hair growth and hair care. Should first determine whether the hair follicles are necrotic, need to go to the hospital under the guidance of the doctor with professional equipment to detect, if the hair follicles are not necrotic, then by combing hair to stimulate hair follicles, promote hair growth, is possible. Hair loss may be caused by anemia, abnormal thyroid function, abnormal liver and kidney function, lack of trace elements, etc. At this time, it is necessary to go to a regular hospital for a comprehensive examination and cause-specific treatment. Frequent combing will stimulate healthy hair follicles to produce hair, but it has limitations in treating hair loss. If hair loss occurs, you should go to the hospital in time, identify the cause of the disease under the guidance of the doctor, and treat the cause.