Many patients do not agree with the symptoms of small pimples around the asshole, and most think they have hemorrhoids. Chongqing anorectal hospital I. Perianal abscess. Induration lump: At the initial stage, induration lump appeared around anus, which gradually increased. After a long time, some of them can explode by themselves. Second, rectal prolapse. It refers to the disease that the anal canal, rectal mucosa or rectum, and part of sigmoid colon shift downward and protrude from the anus, commonly known as proctoptosis. Third, rectal polyps. It is a common benign tumor of rectum, which can be single or multiple. Polyps are mostly round or oval pedicled tumors, which usually occur at the lower end of rectum. It can escape from anus during defecation and retract after defecation. Fourth, anal papilloma. Anal papilloma is one of the common benign tumors in anorectum, which is caused by long-term stimulation of feces and chronic inflammation. Clinically, besides prolapse of anal papilloma, bleeding after defecation, feeling of unclean defecation and anal pruritus are the main manifestations. Fifth, hemorrhoids. Internal hemorrhoids, mixed hemorrhoids, external hemorrhoids, etc. There are often lumps outside the anus when defecating forcibly. Recommended reading: Perianal abscess should also be paid attention to in diet.