Teenagers who lose their hair a lot may be related to baldness, ringworm, resting alopecia and other diseases, the treatment mainly includes regulating psychological pressure, anti-inflammatory and anti-fungal aspects. 1. Patch baldness: commonly known as “ghost shaved head”, is a sudden appearance of limited patchy hair loss, hair loss part of the border is clear, no local scar, no inflammation. In the treatment is mainly to keep the mood relaxed, avoid excessive tension, and at the same time give vasodilatation (topical minoxidil tincture), topical mometasone furoate gel, Haxinaid and other glucocorticoid drugs anti-inflammatory treatment. 2. Tinea capitis: a disease caused by infection of ringworm, in the clinic, in addition to hair loss and breakage phenomenon, may also be accompanied by a large number of dandruff and itching discomfort. Treatment is mainly based on antifungal, such as external ketoconazole lotion, oral itraconazole dispersible tablets and so on. As the disease is contagious, so we must pay attention to hygiene to avoid cross-infection. 3. Resting hair loss: is due to endocrine, drugs and mental factors lead to early hair into the resting period, can be manifested as hair gradually thinning, may also appear in a short period of time a large number of hair loss phenomenon, in the treatment of treatment is mainly for the cause of treatment, such as levothyroxine sodium tablets for the treatment of hypothyroidism, multi-dimensional elemental tablets to supplement the nutrients, diazepam sedation, and so on. Due to the complexity of the cause, the specific situation needs to be analyzed by a doctor after an interview to formulate a treatment plan, the specific use of drugs need to follow the doctor’s instructions.