Common clinical alopecia areata and androgenetic alopecia, of which alopecia areata is a sudden, limited patchy hair loss. There is usually a genetic susceptibility and the disease is somewhat self-healing. If it continues to worsen, it needs to be treated in time, and some of them may develop into alopecia areata or alopecia areata. In terms of treatment, local treatment is generally based on the application of 5% minoxidil tincture, or intradermal injection of prednisone or compound betamethasone injection in the balding area, and oral Chinese medicine can also be used to regulate it. Androgenetic alopecia is related to genetics and has a family tendency to be treated with 2%-5% tincture of minoxidil. In addition, you can take internal spironolactone, 40-60mg per day for 1-3 months, and also oral finasteride tablets, 1mg per day, generally need to be taken continuously for more than 6-12 months, the adverse effect is that may reduce libido, the incidence is generally 1.7%, after stopping the drug can be restored, in addition to the implementation of hair transplantation.