A variety of anal as well as rectal mucosal lesions can present with red bumps around the anus. The main ones include hemorrhoids, perianal abscesses, and sinusitis. First, consider the symptoms of hemorrhoids. External hemorrhoids can lead to venous blood clots around the anus, causing redness and pain, while internal hemorrhoids can cause the nucleus to prolapse from the anus and cause bleeding. Secondly, perianal abscess is considered, which is an acute inflammatory lesion of the mucosa of the lower rectum, causing pus to leak out of the anus and appear as a mass around the anus with a large amount of pus inside, showing redness, swelling and pain. Dermatological diseases and allergic symptoms can also cause red bumps around the anus Patients are advised to go to the hospital for detailed examination.