<unk>  is when the tissue that lines the rectum falls down into or sticks through the anal opening. It starts from<unk>  intussusception, followed by external mucosal prolapse, and eventually a full protrusion of all layers of the rectum.<unk>  occurs more frequently in the elderly and women and most common symptoms include pain, fullness or a lump inside rectum, fecal incontinence, constipation and bloody and/or mucous<unk>  discharge. Common causes of<unk>  include<unk>  denervation, perineal nerve injury, kinking of the redundant loop of sigmoid colon and altered colonic motility.<unk>  must be differentiated from hemorrhoids, anal fissure and perianal abscess, anal cancer and condylomata acuminata.<unk>  cannot be corrected nonoperatively. It has two different surgery approaches: abdominal surgery (lower recurrence rate and better functional outcomes) or perineal surgery (in elderly patients, significant comorbidities, high risk patients for general anesthesia, previous pelvic surgery or radiation).
Rectal prolapse
Anal fistula
Anal fissure
Anal abscess
Rectovaginal fistula
Anal dysplasia
Perianal abscess
Vaginal prolapse