hi ive just come back from a walk with my ridgeback and noticed some blood at the base of his nails. what can it be?
It can be a cut. Desinfect it and put a gauze bandage for several days.
When was the last time his claws were trimmed? If his claws are too long, they can dig into the pavement or ground and begin to twist in their sockets when he walks, causing bleeding and pain.