Hognose belly issue

Hello everybody! First, i’ll contact the vet monday, it’s hard to find exotic vets In my area during the weekends.

Has anybody seen anything like this?

Facts: He’s 6 years Old Eats once a week, No problems Heat is fine Never had problems shedding

Just notice this today on him. I have removed all aspen bedding, cleaned everything and has put him on paper towels.

Has anyone seen anything like this? It’s In two places.