Why has my 6 yr old male shcnauzer suddenly started doing his business in the house? Nothing in his life has changed and hes not ill. He knows he's in trouble but does it anyway.
I would take him to the vet..he may have a medial issue. I have a friend that has an adult dog that started doing her business in the house and she ended up having kidney stones. So I would call your vet! Good luck!