Bad breath can indicate problems with their respiratory system, gastrointestinal tract, infections, or organs. Stinky dog breath primarily stems from bacteria caught in the mouth, teeth, and gum lines that leads to gingivitis, this is called Periodontal Disease. 80 percent of dogs with bad breath is being caused by periodontal disease. A little dental hygiene and cleaning can prevent and treat the early stages of oral bacteria development, but more advanced cases need to be properly treated by a vet. [Read More]