In the early stage of seborrheic alopecia, there is no obvious hair loss site, which can be controlled by drugs. If obvious hair loss has occurred or hair loss lasts for more than one year, most hair follicles in the hair loss area are closed at this time, and the recipients of drug treatment disappear, so does the therapeutic effect. Autologous hair transplantation has become the best method to treat seborrheic alopecia.