If your dog’s breath smells particularly bad, it could be a sign of dental problems such as plaque and tartar buildup on their teeth resulting from their diet or it could be a sign of digestive issues. If your dog’s breath smells sweet or fruity, it could be an early sign of diabetes. Talk to your veterinarian if you’re concerned about your dog’s bad breath. They will be able to help you determine the cause and find a solution to your furry friend’s stinky problem.