Hair loss prevention and regrowth methods include improving living habits, primary disease treatment and hair transplantation. 1. Improve living habits: Healthy living habits are important for preventing hair loss and helping hair regrowth, for example: pay attention to ensure sufficient sleep and good mood, avoid excessive anxiety, tension and stress; dietary attention to balanced nutrition; use mild shampoo, minimize perming and dyeing of the hair, and appropriate massage of the scalp and so on. 2. Primary disease treatment: For people with disease-induced hair loss, primary disease treatment is of great significance in preventing hair loss, such as: androgenic alopecia can be used topically with minoxidil, and at the same time can be taken orally with anti-androgenic drugs such as finasteride and spironolactone; ringworm causes alopecia can be taken orally with itraconazole and other antifungal medications; patients with patchy baldness can be injected with glucocorticosteroids such as betamethasone injection. 3. Hair transplantation: For the more serious androgenic alopecia, if the effect of conservative treatment with drugs is not good, you can consider follicular unit hair transplantation and other methods to help achieve the effect of hair growth. It should be noted that the above treatments should be carried out under the guidance of physicians to avoid the occurrence of adverse reactions.