Severe hair loss due to heavy oil production may be caused by seborrheic alopecia, which can be improved by topical medication, oral medication, and hair transplantation. Seborrheic alopecia is mainly related to heredity, androgen and other factors, manifested in the frontal top of the hair reduction, thinning, thinning, accompanied by the symptoms of scalp oil secretion increase. 1. Topical medication: patients can use topical minoxidil tincture, if the scalp oil, can be used at the same time, selenium disulfide lotion, ketoconazole lotion and so on. 2. Oral medication: male patients can take oral finasteride tablets, female patients can take oral spironolactone tablets for treatment. 3. Hair transplantation: patients with hair loss controlled or stabilized after treatment can use hair transplantation to improve, but only for patients with thick hair on the back of the occipital head and sufficient healthy hair follicles for transplantation. All of the above medications should be used under the guidance of a professional doctor, avoid self-medication.