There are many reasons why hair breaks easily: firstly, some people may have congenital problems, such as congenital dry hair disorders. Secondly, some people may have thyroid problems or iron deficiency or be on oral retinoid medication, which can also easily lead to hair breakage. Again, the hair is prone to breakage, but also may be their own nutritional deficiencies these. Finally, is the bad habits in life, as follows: 1, perm hair, frequent perm hair or hair always in the sun, also easy to cause hair breakage. 2, unreasonable blowing hair, hair just after washing very wet, at this time the high temperature of the hair dryer, the water in the hair boiling bubbles, also make the hair easy to break. 3, usually wash the hair shampoo, it is best not to use alkaline relatively large 4, long-term stay up late, fatigue, mental stress leading to endocrine disorders, will also lead to hair synthesis disorders, become soft, thin, dry, easy to break.