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Sigmoidocele (also known as Pouch of Douglas descent) refers to a condition where the sigmoid colon descends (prolapses) into the lower pelvic cavity. [1] This can obstruct the rectum and cause symptoms of obstructed defecation.[2]


The phenomenon is caused by a weak section of fascial supports of the vagina (the uterosacral cardinal ligament complex and rectal vaginal septum), which allows a section of peritoneum containing the sigmoid colon to prolapse out of normal position and fall between the rectum and the vagina.[3]


It is not possible to differentiate between a rectocele and a sigmoidocele on vaginal examination. Defecating proctography will demonstrate a sigmoidocele during straining.[citation needed]


Sigmoidocele normally occurs in females, and is uncommon. [1]


  1. ^ a b Wexner, edited by Andrew P. Zbar, Steven D. (2010). Coloproctology. New York: Springer. ISBN 978-1-84882-755-4.CS1 maint: extra text: authors list (link)
  2. ^ "Cystoceles, Urethroceles, Enteroceles, and Rectoceles - Gynecology and Obstetrics - Merck Manuals Professional Edition". Merck Manuals Professional Edition. Retrieved 2017-12-28.
  3. ^ al.], senior editors, Bruce G. Wolff ... [et (2007). The ASCRS textbook of colon and rectal surgery. New York: Springer. ISBN 0-387-24846-3.