If a patient with appendicitis has difficulty in defecation, it is considered that the symptoms of infection are more serious, and there is exudate or even pus in the abdominal cavity or pelvic cavity, which irritates the rectum as well as the anal canal, and there is obvious localized congestion and edema, or even peristaltic abnormality, and so there will be difficulty in defecation. In severe cases, there may also be perianal bloody secretions. In this case, anti-infective treatment can be continued, and at the same time, rectal or anal fingerprinting can be carried out to investigate whether there is any abscess in the anterior rectal wall. Usually the patient has fever, and even the anterior wall of the rectum can be touched with fluctuating sensation, and if necessary, the anterior wall of the rectum can also be incised and drained through the anus, to drain out the pelvic pus, and at the same time, continue to replenish fluids intravenously, and the patient’s symptoms can be improved.