Black marks on both sides of the buttocks can be removed through life conditioning, medication and physical methods. Black marks on both sides of the buttocks may be caused by pigmentation, abnormal blood circulation, ringworm, etc. Treatment needs to be chosen according to the cause. 1. Pigmentation: you should eat more vitamin-rich foods, such as kiwi, grapefruit, oranges, etc., to inhibit the formation of melanin to a certain extent, you can also choose to use vita-acid cream, hydroquinone cream and other medications, but also for the ultra-pulse light laser and other physical methods of treatment. 2. Abnormal blood circulation: you can appropriate exercise, promote the circulation of the body’s blood, but also can be local hot compresses, promote local blood circulation, can effectively lighten the buttocks on both sides of the black marks of the symptoms. 3. ringworm: need to wear loose, comfortable and breathable cotton clothing, keep the local skin clean and dry. You can choose to use miconazole cream, terbinafine cream, etc., oral itraconazole capsules, terbinafine tablets and other drugs for treatment under the guidance of a professional physician. Need to standardize the use of drugs under the guidance of a professional doctor, avoid blind use of drugs to avoid adverse reactions.