page_title: Prolapse
section_title: Birds
hierarchical_section_title: Prolapse / Other species / Birds
caption_attribution_description: English: An egg-bound budgerigar hen with a prolapse and her mate.
context_page_description: In medicine, prolapse is a condition in which organs fall down or slip out of place. It is used for organs protruding through the vagina, rectum, or for the misalignment of the valves of the heart. A spinal disc herniation is also sometimes called "disc prolapse". Prolapse means "to fall out of place", from the Latin prolabi meaning "to fall out".
  Relating to the uterus, prolapse condition results in an inferior extension of the organ into the vagina, caused by weakened pelvic muscles.
context_section_description: Oviduct prolapse is an often fatal condition in birds. When an egg is laid, the vagina everts through the cloaca to deliver the egg. Large eggs and avian obesity are contributors to this condition. Immediate veterinary assistance is paramount to the survival of a bird with prolapse. Even with immediate medical intervention the chances for survival are usually uncertain. Untreated birds will begin to tear at the injury site, and other flockmates will begin to cannibalize the prolapse area, a behaviour commonly known as pickout.
caption: An egg-bound budgerigar hen with a prolapsed vagina and her mate
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