I am very worried (maybe paranoid) about something I noticed while grooming my one-year-old Yorkie-Poo last night. I was trimming the hair around his backside (poop gets stuck!) and I happened to notice that he has many tiny black dots all over his testicles. They are separate toward the outer portion but as they get closer to the middle where the testicles join, they get very dense and dark. Nothing seems irritated, scabby or swollen, nor does he seem bothered. My real question is... is this just what dog testicles look like?? Could it simply be normal pigmentation? We've had him for a year and to tell you the truth, they very well may have always been there, but I just took notice last night. I don't make a habit of inspecting his nether-region and I've never had a dog before so I'm clueless. I don't want to be the idiot who rushes him to the vet, just to pay $80 to be told "Ma'am, that's what dog testicles look like". Should I be worried? Thanks!