Why does hair split?

Hair bifurcation, that is, clinical hair longitudinal crack disease, there are many reasons for the performance, mainly related to the following points: 1. hair is too long, hair is too long will lead to hair follicle, hair shaft local nutrients can not reach the end of the hair, and then easy to show hair tip bifurcation;2. frequent perm or long-term use of hot hair dryer, local repeated thermal stimulation, but also easy to cause hair ends to show division; 3. Long-term use of alkaline soap shampoo, easy to destroy the basic structure of the hair, and then will lead to the bifurcation of the hair ends.4. Some protein deficiency, low cysteine and cystine content in the hair shaft, the formation of hair essential protein reduction, can also lead to hair bifurcation phenomenon.