Patients with appendicitis who have difficulty defecating are considered to have more severe symptoms of infection, with exudate or even pus accumulation in the abdominal or pelvic cavity, irritating the rectum as well as the anal canal, with significant local congestion and edema, and even abnormal peristalsis. In severe cases, there may also be a bloody discharge around the anus. In this case, anti-infective treatment can be continued, and a rectal or anal examination can be performed to detect the presence of an abscess in the anterior rectal wall. Usually the patient is febrile, and even the anterior rectal wall can be palpated with fluctuating sensation. If necessary, anterior rectal wall can also be drained through the anus to drain the pus from the pelvic cavity, while continuing intravenous rehydration, the patient’s symptoms can be improved.