Hair loss on the top of the head may be caused by physiological hair loss, scalp ringworm, baldness, seborrheic alopecia and other factors. It is recommended to pay attention to the care of hair and scalp, and can choose topical drugs, oral drugs and other ways of treatment. 1. Physiological hair loss: hair has a certain growth cycle, affected by physiological factors, there will be a small amount of hair loss every day, which is a normal phenomenon. 2. Ringworm of the scalp: ringworm of the scalp is caused by fungal infection, which leads to hair breakage and lack of hair, causing hair loss. Ketoconazole lotion, ketoconazole cream can be given, if necessary with itraconazole capsules, terbinafine hydrochloride tablets and other medications. 3. Patchy baldness: Patchy baldness is limited patchy hair loss, which is currently believed to be related to endocrine, genetic, autoimmune, emotional, stress and other factors. It is recommended to remove the triggers and treat the primary disease. Usually pay attention to dietary adjustments, external minoxidil coating, oral cyclosporine A, diazepam and other medications. 4. Seborrheic alopecia: Seborrheic alopecia is considered to be related to excessive secretion of sex hormones and genetic factors. It may lead to gradual reduction and thinning of hair on the top of the head. Men can choose finasteride, women can use spironolactone, cyproterone, which can reduce androgen production. It is also combined with topical application of minoxidil, which can promote hair growth. Head hair loss may also be caused by other reasons, such as scalp lupus erythematosus, lichen planus, scleroderma, alopecia areata folliculitis, etc. It is recommended to go to the hospital, clarify the cause of the disease and then standardize the treatment under the guidance of the doctor.