Updated On September 23rd, 2025
Why does my dogs fangs have an orange yellow stain on them? Why does his breath smell so horrible?
1 Answer
Published on December 20th, 2016
The most common cause of tooth discoloration and bad breath is severe dental disease. Other possible causes would include a systemic illness like liver or kidney failure, or even diabetes. I would recommend having your dog examined by a vet as soon as you are able to - he/she can examine his mouth and teeth to check for excessive tartar build-up and infection, and can also do blood work or other testing if needed to help determine the problem.
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