High school girls with severe hair loss need to be treated according to specific causes (such as physiological causes, baldness, ringworm or androgenetic alopecia, etc.), including general treatment, medication and surgery. 1. Physiological reasons: Normal people can lose 70-100 hairs per day. If the number of hair loss is within this range, it is normal hair loss and does not require special treatment. 2. Pathological causes (1) Patchy baldness: Minoxidil tincture and Hasinide solution can be used externally to accelerate hair growth, and if necessary, glucocorticoid can be injected locally to inhibit inflammation of hair follicles and immune response. (2) Tinea capitis: manifested as erythema, papules, scales and hair breakage on the scalp, oral antifungal drugs (such as terbinafine, itraconazole, etc.) can be supplemented with topical drugs such as ketoconazole lotion. (3) Androgenetic alopecia: oral spironolactone can be taken under physician’s guidance for control, while topical minoxidil tincture can be used to promote hair growth. If there is a serious case of hair loss, it is recommended to go to the hospital in a timely manner, clear causes of hair loss and then treatment, specific medication to follow the doctor’s instructions.