If there is hair loss, it is necessary to clarify the causes, such as androgenetic alopecia, spot baldness and other causes of hair loss, general treatment, drug treatment and so on. 1. Androgenetic alopecia: also called seborrheic alopecia, often due to heredity and androgen abnormality, early manifestations of thinning hair, hairline receding, etc., can be sprayed with minoxidil tincture, men can take oral finasteride tablets to reduce androgen, and women can take oral spironolactone and other drugs. 2. Patch baldness: Patch baldness is believed to be related to autoimmune, genetic, emotional stress and endocrine factors, generally manifested as sudden patchy hair loss, round or oval, varying in size, can be used externally tincture of minoxidil as well as local glucocorticosteroid treatment, or oral cyclosporine and other immunosuppressants or herbal extracts such as glycyrrhizic acid glycoside. 3. Other causes: frequent late nights and nutritional deficiencies can lead to hair loss, so, in daily life, avoid late nights, regular work and rest, and balanced nutrition. If hair loss occurs, it is recommended to go to the hospital to find out the cause and then carry out symptomatic treatment. The above medications need to be used in accordance with medical advice.