I don't know if this is the start of prolapse, but Mushu has been eating a little strange lately, not anything too worrisome, just strangely, and today I checked his underside, and I saw this. Is this the start of prolapse? Should I take him to the vet?? I know that prolapse is fatal untreated, I also don't want to panic if it isn't prolapse. It isn't a very good picture, I had a hard time getting him to cooperate... It is protruding more then the picture shows...