Internal Intussusception - Complete (external) Rectal Prolapse

Complete (external) Rectal Prolapse

Rectal prolapse is a “ falling down” of the rectum so that it is visible externally. The appearance is of a reddened, proboscis-like object through the anal sphincters. Patients find the condition embarrassing. The symptoms can be socially debilitating without treatment, but it is rarely life threatening.

The true incidence of rectal prolapse is unknown, but it is thought to be uncommon. As most sufferers are elderly, the condition is generally under-reported. It may occur at any age, even in children, but there is peak onset in the fourth and seventh decades. Women over 50 are six times more likely to develop rectal prolapse than men. It is rare in men over 45 and in women under 20. When males are affected, they tend to be young and report significant bowel function symptoms, especially obstructed defecation, or have a predisposing disorder (e.g., congenital anal atresia). When children are affected, they are usually under the age of 3.

35% of women with rectal prolapse have never had children, suggesting that pregnancy and labour are not significant etiological factors. Anatomical differences such as the wider pelvic outlet in females may explain the skewed gender distribution.

Associated conditions, especially in younger patients include autism, developmental delay syndromes and psychiatric conditions requiring several medications.