Rectum prolapse ( prolapse of the anus ) anus of aching be confined to is local , companion has ulcer , nightly and quiet when more painful , although pathological changes develops and aggravate , can appear meaning is frequent , in urgent hind heavy , defecate incontinent , excrement and urine is fine narrow contain the symptom such as purulent blood secretion 直肠脱垂(脱肛)疼痛限于肛门局部，伴有溃疡，夜间安静时更痛，虽病变发展而加剧，可出现便意频繁、里急后重、大便失禁、粪便细窄并带有脓血分泌物等症状。
