The anal flap will get larger and larger, mainly due to unreasonable dietary habits or bowel habits, especially in patients with habitual constipation, and repeated episodes will lead to an increase in local symptoms. The formation of anal flap is mainly due to the history of acute thrombosed external hemorrhoids, which are left locally after the nucleus has shrunk. Prolonged sitting or local infection of the perianal area, as well as severe constipation, can also induce the formation of acute thrombosis within the hemorrhoid nucleus and require surgical treatment if necessary. In mild cases, you can choose a conservative approach, mainly by paying attention to the hygiene around the anus and developing the habit of having bowel movements on time. The actual fact is that you can find a lot of people who are not able to get a good deal on this kind of things.