Take him to the vet ASAP. If there are internal organs out, then that sounds pretty bad. Most of the time it is just an intestinal prolapse. It could be from nutrition or some other internal problem. Impossible to diagnose without seeing the frog or knowing the exact circumstances etc. All I can say is get it to a vet. Best of luck to you.
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Andy Maddox
AIM: SurfAndSkimTx04
MSN: Poloboy32486@hotmail.com
Yahoo:surfandskimtx04
Houston Herp Key
The Reptizone