Re: Spot of dark hair suddenly appeared
Just read this online from someone asking the same question on a different dog forum:
I know in my red or silver poodles if they have suffered ANY irritation to the skin the new hair will often come in darker, but will lighten up to the same color as the rest of the coat after a few months. Perhaps she had an unnoticed insect bite or some other abrasion to her skin a a while back and now the darker hair is coming back in over that area. It also occurs after vaccines, especially rabies.
I had a silver poodle who had surgery once. Several months later he had FOUR large areas where the hair was totally BLACK. My vet told me that was where they attached the clamps for the surgery drape... there was absolutely no indication of anything on his skin, it was only his hair that was black. Within 6 months or so it was the same silver as the rest of his coat.