Are there any marks on its tail or other cheek? How old is he? Possible chemical burn.
How interesting.
One of mine has lots of deep scar tissue in her bum, it looks like cellulite but has improved as she's developed more muscle.hers is very similar but without the hair loss, and on both sides.
We have concluded she's had some kind of crash in/with a trailer. (She's also very very afraid of trailers)
Its interesting as the tail doesn't appear affected at all, so if was a chemical or fire burn would be quite a specific area.
Road rash/burn injury maybe? If was in a carriage and fell could easily slide along that part without tail affected.
I was thinking barbed wire
In that case why would the tail and other cheek be undamaged?I reckon he's had pinworm that nobody's bothered to treat. Looks like he's rubbed himself raw on everything in sight, including wire, and been left with permanent scarring from months of damage on top of damage.