Farmboy & maggie

I'm just wondering if anyone has an answer to this. Farmboy's nose is always dirty on the outside (around the nostrils). Could it be genetic or inherited - he is one of Maggie's babies from her 1st litter, and her nose sometimes appears dirty also. When I got Maggie (she was a stray), she had a bad case of ear mites. I check all my cats regulary for those, but that doesn't seem to be a problem for Maggie or Farmboy. Any ideas?

Personaly If The Nose Is Not Congested, And Theres No Problem With Them Breathing, It Could Well Just Be Coloring.
I Would Mention That To Thier Vet, Amd See What They Say As Well.

Boo's nose to me looks dirty but I think it is just the way it is. I have tried washing it. Below is a good picture of her nose, is does it look like hers?

http://img.photobucket.com/albums/v2...HPIM3473-1.jpg