There is a piece of meat inside the anus, may be hemorrhoids, rectal polyps or rectal cancer and other formation of the swelling. 1. Hemorrhoids: such as internal hemorrhoids, due to the anal canal vascular cushion elasticity retraction weakened, anal cushion can be congested, downward displacement, hyperplasia and hypertrophy to form hemorrhoids, defecation and blood, and sometimes there can be hemorrhoids nucleus prolapse, self-recovery or hand-assisted recovery; internal hemorrhoids to develop to the degree of Ⅲ or more can be formed in a mixed hemorrhoids, internal and external hemorrhoids, the symptoms may be concurrently, such as dermatophyte and inflammatory hemorrhoids, internal hemorrhoids, prolapsed, and so on. 2. Rectal polyps: polyps at the lower end of the rectum can be found during rectal palpation, and there is a piece of meat in the anus, which can be prolapsed out of the anus during defecation. 3. Rectal cancer: In low rectal cancer, most of the cancer can be touched during rectal palpation, and blood staining of the finger cuff can be seen. If you find any anal discomfort, swelling inside the anus, blood in stool, etc., it is recommended to consult the doctor in time, improve rectal diagnosis or endoscopy and other related examinations, identify the cause of the disease, and then give symptomatic treatment to avoid delaying the condition.