Hair thinning may be related to drug stimulation, physiological factors, mental factors, disease factors, genetic factors and other conditions, should be based on the cause of the disease, through life conditioning, drug treatment and hair transplantation and other methods to make hair increase. 1. Drug stimulation: Hair loss caused by birth control pills or chemotherapy drugs is temporary and can be restored after stopping the use of drugs. 2. Physiological factors: If the patient is old or chronically malnourished, it is necessary to supplement the nutrition in time, and can eat more food rich in copper, iron and zinc. 3. Mental factors: If the patient has too much mental stress for a long time, it may cause hair loss, which can be relieved after adjusting the mental state. 4. Disease factors: If the patient has ringworm, it can be treated by applying drugs such as compound miconazole ointment. If you have folliculitis, you can apply fusidic acid cream, ichthyolite ointment and other medications. 5. Genetic factors: If the patient has congenital hypotrichosis, androgenetic alopecia or baldness, it may be caused by heredity. Minoxidil application can be used to apply on the affected area, oral finasteride treatment for men and oral spironolactone treatment for women. If hair thinning is more serious, hair transplantation can be used to improve the image. It is recommended that the patient consult a doctor in a timely manner to determine the cause of the disease, and then strictly follow the doctor’s instructions for treatment according to the cause of the disease, and not to use drugs casually.