If the child appears to age hair curly situation, mostly due to genetic factors, if adults appear this situation, may be the scalp lack of vitamins or trace elements. 1. children: this situation is called from the volume, is a genetic factor caused by congenital symptoms, in the process of hair growth can appear, and the scalp follicles have a certain relationship, with the age of the hair grows to present the state of self-curl. 2. Adults: When the patient’s diet is irregular or poor eating habits, it may lead to malnutrition, so the delivery of vitamins and trace elements to the scalp is insufficient, which will lead to the hair become curly later. Prolonged dyeing and perming of hair can also lead to hair damage and dry, curly hair. Patients are advised not to over-clean the scalp in general, to take more nutrients such as vitamins and minerals, and to avoid physical and chemical stimulation of the scalp as much as possible.