Rectal prolapse is an intussusception of the rectum, which may be classified as mucosal, internal (occult) or complete (full thickness). Mucosal prolapse is a protrusion of the mucosa only without sliding of the muscular layer, which remains in place. Internal rectal prolapse does not come down beyond the anal canal and, frequently, is not associated with any symptoms; it is likely to be a precursor of a complete prolapse. Complete rectal prolapse is a full-thickness protrusion through the anal canal.
ASJC Scopus subject areas