What Does a Coated Tongue Mean?
If your dog’s tongue develops a coating, spots or other discoloration, schedule a trip to the vet immediately. These changes can be symptoms of serious, even life-threatening conditions.Dye TransferA dog’s tongue may pick up a coating of dye from chew toys. Dyes may be poisonous; check with your vet.Blue Tongue and GumsCyanosis, or blue mouth discoloration, indicates low oxygen levels in the blood due to respiratory disease, heart disease or toxin exposure.SpotsThe appearance of a dark spot, especially with an irregular border, may indicate a melanoma. Pale spots may signify that your dog has been licking objects with irritating chemicals on them. They may also indicate an immune system problem.Black TongueA black tongue accompanied by bloody drool and unusually bad breath may indicate ulcers or inflammation (stomatitis) in the mouth. These may, in turn, be symptomatic of a variety of potentially serious conditions such as thrush, trench mouth, uremia or distemper. Black tongue can als
