A pimple on the anus may be caused by inflammatory external hemorrhoids or thrombosed external hemorrhoids that are congested and edematous, or it may not be ruled out that the nucleus of the internal hemorrhoids as well as rectal polyps and anal papillomas are prolapsing outside the anus. If the bumps are caused by inflammatory external hemorrhoids or thrombosed external hemorrhoids, you can take a sitz bath with warm water or potassium permanganate water to improve the blood circulation around the anus. Applying hemorrhoid ointment, such as anal tide ointment and Ma Yinglong hemorrhoid cream, to the meat bumps can help reduce swelling and pain. If the bumps do not subside or tend to get worse after about 3-5 days of treatment with the above methods, surgery is recommended for treatment. If the pimple is caused by a prolapsed internal hemorrhoid nucleus, the prolapsed hemorrhoid nucleus should be promptly incorporated into the anus by hand, and then treated with the above conservative treatment methods. Once it is determined that the bumps are caused by rectal polyps or anal papillomas that have prolapsed outside the anus, they should be removed surgically in a timely manner.