Hi Can you give more details about the type of dribbling. I am assuming you mean from the mouth? Some dogs drool when there is food around. My dog produces a foamy saliva if he is on a walk doing a lot of sniffing of particularly interesting smells.
Hi Julia. It might be just normal for your pup. But if it's a new issue, or there's a lot of it, or it's happening at times other than when they anticipate food, it's definitely worth a chat with your vet. Sometimes drooling is a sign of anxiety, or of mouth problems. So if in doubt it's best to get it checked out.