A bald patch on the top of the head may be related to hair pulling fetish, baldness, ringworm, etc. It can be treated by correcting bad habits, medication and general treatment. 1. Hair-pulling fetish: It is common in children and people with mental illness, and it is caused by long-time limitation of hair-pulling to a certain place, resulting in a bald patch on the top of the head. Children need to be induced to correct the bad habit, while people with mental illness need to actively treat the primary disease. 2. Patch baldness: baldness on the top of the head can also be considered patch baldness, patch baldness and mental stress, heredity, endocrine disorders and other factors related to the discovery of baldness on the top of the head when you can first learn to relax, daily rest, with the topical tincture of Minoxidil, oral blood hair capsule, Cyclosporine soft capsule, and other medications slowly recover. 3. Tinea capitis: a disease caused by fungal infection of the hair and scalp, can also lead to a bald patch on the top of the head, accompanied by itching, dandruff and other symptoms. At this time you need to give antifungal treatment, such as topical ketoconazole, miconazole ointment, oral itraconazole and other drugs. In addition, you need to cut the diseased hair and pay attention to personal hygiene to avoid infecting others. In addition, there are scleroderma, lupus erythematosus, severe folliculitis, etc. will lead to scarring of the scalp, thus causing irreversible hair loss, the need to actively treat the primary disease, while hair transplantation can be used to improve the hair loss. It is recommended that patients with baldness on top of the head go to the hospital in a timely manner, by the doctor to identify the cause of the targeted treatment, the use of medication needs to be guided by the doctor.