After perianal surgery, diet is a more important part because it directly affects bowel movements. If defecation is not smooth, it is easy to stimulate the trauma around the anus, which can cause severe pain to the patient, so it is important to have a balanced diet after perianal surgery. First, you should eat more vegetables and fruits and drink more water. Because these and high-fiber foods, it is easy to form loose stools and regular stools, so that the stimulation of the anus is not more serious and affects the post-operative healing; secondly, you must eat a proper diet with nutritious food, especially after 10-15 days after surgery, the trauma is not particularly painful, whether it is defecation or medication change. You can eat nutritious food, such as beef and mutton, and food with more protein content, because this can promote the healing of the trauma; thirdly, you must not eat spicy and stimulating food, because it is easy to stimulate the trauma around the anus, and it is also easy to have septic infection.