Hair loss may be related to genetics, as well as emotional tension, staying up too late and stressful, long-term irritating foods and inappropriate shampoos, hair coloring, perming can cause hair loss. Severe hair loss treatment has the following options: 1, topical medication: Imiquimod cream, used on dry scalp sprayed on the scalp gently massage, scalp to heat to increase absorption, even with 4-6 months to take effect, but can be re-hair loss after 1 month of discontinuation, so the need for continuous treatment, there are no obvious side effects. 2, oral medication: drugs to promote hair growth, such as B vitamins, cystine, etc.. If it is a woman with high testosterone level in her body, she can also choose anti-androgen treatment, such as Daing-35 and spironolactone. If it is a male it is recommended to take oral Finasteride, at least six months orally to have an effect, it is not recommended to stop the drug, it needs continuous treatment.