Bacterial infection is a common clinical infection, which is a pathogenic bacterium that causes infection in specific parts of the body, both superficial and internal organs. The common bacterial infections in anorectology are mainly localized purulent diseases of the perianal area. For example, perianal abscess and anal fistula are common bacterial infections that cause local inflammation, necrosis, and localized redness, swelling, and pain. It is a heavy disease that causes high fever in the body after the onset of the disease. Conservative treatment is by way of infusion and anti-inflammatory, but to a serious degree, surgical incision and drainage should be used, and surgical intervention can play a very good role in the treatment of this bacterial infection.