Buttock melanin deposition may be due to friction, inflammation and other causes of symptoms, you can use general treatment, drug treatment, physical therapy and other ways to correspond to the treatment. 1. General treatment: if the patient sits for a long time, resulting in friction between the buttocks and the bench, causing melanin deposition; the patient should reduce sedentary activities in daily life, and carry out appropriate exercises, which to a certain extent can lighten the melanin. 2. Drug therapy: when the patient’s buttocks due to repeated stimulation of inflammation, may induce folliculitis, folliculitis subsides after the local melanin deposition, you can use fusidic acid cream, hydroquinone cream and other drugs to treat. 3. Physical therapy: patients can go to the regular hospital to use laser irradiation to slow down the production of melanin, lighten the symptoms. Patients in daily life should follow the doctor’s instructions to take medication, avoid eating spicy and stimulating food, so as not to aggravate the inflammation, when the melanin symptoms worsened in a timely manner to seek medical attention.