Debbie is concerned about what looks like bruises on the inside thighs of her ferret. My daughter calls these "skid marks". It's fairly common in plump ferrets who wear away the fur in those spots through normal play. The new fur growing in often has a bluish look at first, and it looks like the skin is bruised. Not to worry! It will go away as you ferret loses his baby fat and the fur can grow back in. It may reappear in winter as he plumps up again. Linda Iroff North Coast Ferret Shelter West "The Raisin Retreat" http://www.oberlin.edu/~liroff/ncfs.html [Posted in FML issue 2319]