Bad hair breakage may be caused by ringworm of the head, head lice, seborrheic alopecia, frequent perming and coloring of the hair, frequent pulling of the hair, insufficient nutritional intake and other reasons. 1. Tinea capitis: Tinea capitis hair breakage is caused by fungal infection, in the treatment of which it is recommended to shave off the broken hair and take oral itraconazole and other antifungal drugs for treatment. 2. Head lice: head lice hair breakage is caused by lice parasites in the scalp area. In the treatment of lice, you can use topical tincture or benzyl benzoate milk to improve the situation. 3. seborrheic alopecia: seborrheic alopecia caused by hair breakage is mostly due to Malassezia infection, can be used externally ketoconazole or selenium disulfide to clean the hair. 4. Frequent perming and coloring of hair: frequent perming and coloring of hair will lead to damage to the hair scales and reduce the toughness. It is recommended that patients reduce the number of hair perms and dyes in their daily lives. 5. Frequent pulling of hair: frequent pulling of hair will lead to elastic deformation of hair, which is easy to break. So don’t pull your hair too much. 6. Insufficient nutritional intake: hair is composed of keratin, the lack of protein will affect the synthesis of keratin, resulting in nutritional deficiencies, which leads to the phenomenon of hair breakage. For patients with severe hair breakage, it is recommended to go to the regular hospital for examination and symptomatic treatment under the guidance of professional doctors.