Proctitis is not necessarily cancerous, and the chances of it becoming cancerous are relatively small. If it is a simple proctitis, almost no cancer will occur, of course, if the proctitis has a long course and the inflammation is recurrent, only then it may evolve into rectal cancer. In addition, for high-risk factors, such as intestinal polyposis, especially adenomatous polyps, which can be called precancerous lesions of intestinal cancer, and inflammatory bowel disease, such as ulcerative colitis, the possibility of colon cancer is relatively high, and the other reasons are environmental factors and hereditary factors. Patients can rest assured that simple proctitis is not likely to become cancerous, but most of the proctitis will have certain clinical symptoms, such as abdominal pain, abdominal distension, stool changes, etc., so it is necessary to cooperate with the doctor to give medication when necessary.