Is it bad if your dog’s nails are black?

Black, white, or brown discoloration in your dog’s nails can be a sign of a fungal or bacterial infection. Symptoms of a fungal infection in a dog’s nails include: Itchiness or tenderness. Favoring one leg.

Why does my dog have some black nails and some white?

Not to worry, this is perfectly normal! Many dogs have a mixture of black and white nails, and it’s due to pigmentation in their nails. Now sometimes they can be a medical reason for the different colored nails, such as a fungal infection, so it’s always good to have Archie checked out by a vet just to be sure.