Pimples here generally refer to pimples or cysts. Pimples on the buttocks may be caused by folliculitis, sebaceous cysts, perifollicular keratosis, etc. If it is folliculitis, you can use topical fusidic acid cream and other drugs; if it is a sebaceous cyst, it can be surgically excised; if it is perifollicular keratosis, you can use drugs such as 0.1% Vitamin A cream. 1. Folliculitis: Folliculitis is a purulent skin disease that occurs in and around the hair follicles and can present with red papules, pustular herpes, itching, pain and other symptoms. Folliculitis can also cause pimples on the buttocks, which can be treated with topical fusidic acid cream, compound polymyxin B ointment, clindamycin gel and other medications. 2. Sebaceous cysts: cystic structures formed by sebaceous gland excretory ducts that are blocked, leading to sebum retention. It can also cause buttocks acne and can be surgically removed to get rid of the cyst. 3. Perifollicular keratosis: Perifollicular keratosis is a chronic follicular keratosis skin disease, the cause of which has not yet been clarified, and can appear as pimples, itching and other symptoms. If the keratosis pilaris causes pimples on the buttocks, you can use 0.1% retinoic acid cream, tazarotene gel, 10% to 20% urea cream and other external coating. It should be noted that if you find pimples on the buttocks, it is recommended to consult a doctor to determine the cause of the disease and then follow the doctor’s instructions to avoid unauthorized judgment on the use of medication. The drugs mentioned above should be used in accordance with medical advice.