RT Book, Section A1 McQuaid, Kenneth R. A2 Papadakis, Maxine A. A2 McPhee, Stephen J. A2 Rabow, Michael W. A2 McQuaid, Kenneth R. SR Print(0) ID 1193152078 T1 Rectal Prolapse & Solitary Rectal Ulcer Syndrome T2 Current Medical Diagnosis & Treatment 2023 YR 2023 FD 2023 PB McGraw-Hill Education PP New York, NY SN 9781264687343 LK accessmedicine.mhmedical.com/content.aspx?aid=1193152078 RD 2024/04/24 AB Rectal prolapse is protrusion through the anus of some or all of the layers of the rectum. Hemorrhoidal (mucosal) prolapse is common (see discussion under Hemorrhoids). Full thickness is uncommon and is usually caused by surgical or traumatic injuries or from chronic, excessive straining at stool in conjunction with weakening of pelvic support structures, especially in patients who are older, psychotic, or paraplegic. Although prolapse initially reduces spontaneously after defecation, with time the rectal mucosa becomes chronically prolapsed, resulting in mucous discharge, bleeding, incontinence, and sphincteric damage. Patients with complete prolapse require surgical correction.