When people comb their hair every day, they will lose some hair, which is a metabolic phenomenon, and it is normal to lose a few dozen hairs a day on average. In early spring and late autumn season, women’s physiological condition is not easy to maintain a balance due to hormone secretion, sometimes a hundred hair loss a day is not a cause for concern. However, if these conditions are not the case and hair loss is much greater than this number, it should be taken seriously. Generally speaking, the causes of female hair loss are mainly the following: 1, postpartum: Because of the large amount of female hormones secreted in the body during pregnancy, so the hair has sufficient growth hormone. But after giving birth due to the sudden reduction in hormone secretion, hair will naturally fall out in large quantities, but this phenomenon will return to normal in about 6 months after giving birth. 2.Stress: The accelerated pace of life in modern society and the fierce competition, easy to make people carry an increasingly heavy pressure. According to research, stress and hair loss are closely related, but also accelerate the aging of people, so that wrinkles increase. In this regard, the only countermeasure is to take off the burden in time, so that they completely relaxed. 3, dieting: dieting makes the hair lack of adequate nutritional supplements, hair such as the lack of iron intake, it will be yellow and no luster, the final result will inevitably lead to a lot of hair loss. Therefore, to balanced nutrition, do not blindly dieting to lose weight. 4, birth control pills: long-term use of birth control pills for women will also appear hair loss phenomenon, once you stop taking, hair loss symptoms can disappear. 5, perm, hair coloring too often: frequent perm and bleaching and dyeing, will cause damage to the hair and hair loss. Therefore, do not perm too often or abuse hair dye. 6, hairstyle influence: too tightly tied ponytail, crochet braid and twist braid, as well as tightly tied hair curly band, long-term will damage the hair root cause hair loss. In addition, for women’s hair loss parts are mostly concentrated in the forehead and sides, it is recommended that when combing hair do not force the comb to the back pull, do not blow too long, otherwise it is easy to destroy the natural protective layer of hair, so that the hair is dry and easy to break. 7, the impact of disease: certain diseases or congenital diseases, excessive secretion of sebaceous glands or sebaceous glands secretion nature change can cause hair loss.