The scalp will be metabolized every day, hair will be shed normally, but will not lead to a significant reduction in hair volume, no need to worry too much, and generally do not need special treatment. However, if hair loss is serious, or cause a serious reduction in hair volume, should lead to attention. 1, after childbirth: women after childbirth hormone levels tend to decline, while due to nutritional status, mental tension and other factors, may lead to increased hair loss, can be observed with the clinic, generally in 3-6 months after childbirth will return to normal; 2, high fever: high fever will make a series of cell damage, when the wave of hair follicles, may make a large number of hair Shedding, especially sustained high fever, the damage to the hair root is particularly strong, generally with the fever receded, the body recovered, hair loss symptoms will ease; 3, mental stress: too much excessive mental stress may lead to endocrine disorders, women can appear the symptoms of hair loss, need to improve the lifestyle in a timely manner, stable emotions, may return to normal; 4, dieting: dieting will make the hair lack of adequate nutritional supplements, so that the hair becomes yellow and lusterless, fragile and easy to break, leading to massive hair loss. Therefore, a balanced diet structure, do not blindly diet to lose weight, proper nutrition will be alleviated; 5, hairstyle influence: tied too tight ponytail, crochet and twist braid, as well as the hair bundle tight curly band, a long time will damage the hair root caused by hair loss, you should replace the hair band or hairstyle; 6, perm, dye too often: frequent perm and bleaching and dyeing will cause damage to the hair and hair loss, so do not Perm too often or abuse of various hair dyes, etc.; 7, the impact of disease: any disease such as excessive sebum secretion, sebaceous gland secretion nature change or endocrine gland abnormalities, etc., may cause hair loss. At this time hair loss is generally more serious, and often accompanied by other symptoms of the body, it is recommended that patients seek medical treatment in a timely manner.