The hair loss is a very common clinical hair disease, dermatology hair loss patients are increasing year by year, hair loss will seriously affect the patient’s beauty, how to prevent hair loss is very important in the clinic, mainly take the following programs to prevent: 1, eat more food rich in high protein, protein is an important nutrient composition of the hair, such as lean meat, eggs, bird’s nest, etc. 2, try not to perm, hair dye. The chemical solution used for perming and dyeing hair can easily cause hair loss and damage to scalp follicles. 3, pay attention to rest and ensure sufficient sleep to prevent hair loss caused by excessive stress and lack of sleep. 4, pay attention to maintaining hair hygiene to avoid fungal infections, wash your hair regularly, but do not use too hot water to wash your hair and try to avoid using stimulating shampoos.