I know it's a strange request but photos of the cloaca/vent area may be helpful when trying to identify possible health issues.
So lets get those cameras flashing and upload some photos.
High quality, focused photos only please.
I think photos of a normal cloaca would also be a good reference so don't hesitate to post those also.
I brief discription of the species and sex of the snake photographed would be good information.
Please keep the discussion in this thread to subject at hand.