Last Updated on January 17, 2020
To help keep dental disease at bay, use veterinarian-approved dental chews for dogs, or better yet, brush your dog’s teeth at least twice a week.
6. Oral cancer
Even though poor oral hygiene may lead to canine halitosis, it isn’t the sole potential cause. If your dog’s breath has suddenly changed from mild doggy breath to something more like old rotten garbage, then it may be a sign of oral cancer.