Why Are My Puppies Eyes Bloodshot. You should get him checked out by a vet, could be a sign of something. Due to the fact that shih tzus are a breed that are prone to developing eye conditions, there could be a variety of things that are wrong with your dog’s eyes if they are red or bloodshot.

These dogs usually have other symptoms like weakness, discharge from the eyes and nose, dry cough , fever , and lethargy. Why are my dogs eyes bloodshot? Allergies (to food or environmental agents) dry eye can be caused by a number of underlying illnesses, so it's important to have your dog checked out by a vet!