There are more than a few difficulties in dealing with a cloaca prolapse in birds. Prolapses normally occurs during laying of the egg. Hens that are obese or hens that go into lay too early are both at risk of developing this issue. Once prolapsed they are at risk of trauma, cannibalism and edema formation. The biggest risk of injury is when the mucosa dries out or if the tissue becomes strangulated and starved of oxygen. All these conditions will prevent retraction.