Unusual case of rectal prolapse. The hamster is still active and eating and pooping via the prolapsed rectum (evidence - see below). The prolapse was double the size of usual rectal prolapse. I ward him for 2 days and gave antibiotics.
On Day 2, lots of yellowish pus spilled out from the prolapsed rectum. The rectum itself had a large abscess. You can see the scab closing the wound of the abscessed area.