I was feeding my tomato frogs tonight when I noticed one was rejecting the night crawlers. On closer examination I noticed that his sphincter was hanging out of his back end. How could this have happen (what did I do wrong), and is there anything that a veterinary can possibly do in terms of recovery? I have separated him from the rest of the frogs who all appear to be healthy. Any advise or help would be greatly appreciated. Sorry I cannot provide pictures, but my camera is not working.

Ryan