Low back pain, anal swelling, mainly due to rectal inflammation, rectal prolapse, rectal inflammation is a kind of infectious disease located in the intestinal tract, the most important manifestation lies in abdominal pain, diarrhea, and due to frequent and repeated defecation stimulation to the anus, there will be perianal skin swelling, anus falling sensation, the symptom is serious, accompanied by mucus stool, pus and blood stool. Rectal prolapse due to prolonged prolapse of the rectal wall may involve the inner wall of the rectum back pain, mainly dull pain, and due to the prolapse of the prolapsed material in the inner or outer anus, resulting in the emergence of anal atresia caused by anal swelling. Specifically belongs to which disease, need to be hospital anorectal department of professional doctors after consultation to be clear, it is recommended to actively do the anorectal part of the examination, diagnosis of the condition and cooperate with the appropriate treatment.