I just saw the recent post about the red underside, and responded that the ball was about to go in shed. Well my baby ball (3 months) just shed. I picked him up and noticed. A pink/redish shade on his belly. Not sure what this is, never noticed this in my 1 1/2 year old female pastel. Both balls are pastels, just an fyi. Does anyone know what this is?

Any advice is appreciated.