There are many causes of hair thinning in secondary school students, such as androgenetic alopecia, baldness, ringworm, etc. It needs to be treated according to the specific cause of the disease, which usually includes general treatment, medication, surgical treatment and other methods. 1. Androgenetic alopecia: androgenetic alopecia, also known as seborrheic alopecia, usually begins to appear at puberty, hair thinning, hair thinning and hair loss, the patient can be treated with finasteride tablets, spironolactone tablets or minoxidil tincture, and hair transplantation can be used to improve the condition if necessary. 2. Patch baldness: Patch baldness is also known as neurogenic alopecia, which is mainly related to heredity, emotional excitement, endocrine disorders and other factors, patients can be treated with minoxidil tincture, glucocorticosteroid ointment (hydrocortisone butyrate ointment, etc.), and injectable hormones (tretinoin, etc.). At the same time, we should adjust our mind in time and keep a good mood every day. 3. Tinea capitis: Tinea capitis is a kind of skin disease caused by dermatophyte infection, usually manifested as hair loss spots and accompanied by hair breakage and scales, which can be treated by oral terbinafine hydrochloride tablets or itraconazole capsules, and topical ketoconazole lotion, miconazole ointment and other drugs. In addition, patients should pay attention to personal hygiene to avoid cross-infection. Because of the many causes of hair thinning in secondary school students, if the symptoms persist or have a tendency to aggravate, it is recommended that parents bring to the hospital for examination and diagnosis, as soon as possible to clarify the cause of the disease to take targeted treatment measures to avoid misunderstanding of the condition caused by the serious impact. The above medications should be used in accordance with medical advice.