Could you take a picture? The hair itself shouldn't change color.....
Originally Posted by Tayda_Lenny
The hernia could change size if it still has a small opening in the muscle wall. More or less fat can squeeze thru the hole. You can tell if it is open by trying to reduce it, or push the material back inside. If it makes him uncomfortable, obviously don't do it. Often the hole will close as the dog matures, and a little blob of fat will remain in the pocket. But my dogs that have hernias have always seemed to remain open, but small.
If the hernia is still open, it *could change size if his belly is really full of food? But it shouldn't have anything to do with eating something that would make him ill.
I agree with Pat, that it should stay about the same size, and be the same color as the rest of the skin.