Butt anus has been bleeding, most likely because of internal hemorrhoids or mixed hemorrhoids, you can take Yunnan Baiyao capsule, Sophora elm heat capsule and other drugs, at the same time to the oxalic hemorrhoidal clearing suppository and compound angular craniothoracic acid ester suppositories plug anus treatment; if the effect is not good and see hemorrhoids prolapse, then give local compression to stop bleeding; if the bleeding is still, then it is recommended that the surgical treatment. Butt anus bleeding more than considered for anal diseases such as internal hemorrhoids, mixed hemorrhoids, but can not completely exclude the rectal tumor caused by bleeding, it is recommended that the first colonoscopy to rule out intestinal lesions. 1. if excluded intestinal lesions, can be oral medication Yunnan Baiyao capsule and Sophora elm heat capsule, at the same time to the oxalic hemorrhoidal clear suppository and compound angular catecholate suppository anal treatment, sometimes can achieve a certain effect of hemostasis. 2. If the hemorrhoidal body out of the anus, and the naked eye visible obvious bleeding, you can use continuous compression to stop bleeding. 3. If all of the above methods are used and still bleeding, it is recommended to perform surgical excision of hemorrhoids to avoid prolonged bleeding caused by hemorrhagic anemia. The above medications should be applied under the guidance of a doctor.