The method of anal examination is mainly through anal inspection, anal finger examination and anoscopy. The most common diseases in the anus are hemorrhoids, anal fissure, perianal abscess, and anal fistula. Hemorrhoids generally form a soft mass at the anal opening. The main symptoms are pain, bleeding, anal dampness, itching, and foreign body sensation. Anal fissure generally means that a skin fissure is formed at the anus, which usually causes pain and bloody stool. Perianal abscess and anal fistula are two processes of a disease, which are infectious and suppurative diseases around the anus. The main treatment method is surgery. After the surgery, the dressing must be changed on time to keep the surgical wound clean and the granulation tissue fresh.
