If proctitis worsens, it should be treated promptly through surgery. Surgical removal can help prevent spread and prolong life. After surgery, it is also necessary to kill cancer cells through radiotherapy and chemotherapy. If proctitis is not properly managed, frequent recurrences can lead to erosion and even ulcers, which can easily become cancerous. Therefore, regular follow-up colonoscopies are essential to monitor changes in the condition and assess whether there is a high or low chance of deterioration. After surgery, attention should also be paid to a bland diet, avoiding irritant foods.