What Causes a Dog's Bad Breath

Border Collie (Detailed Introduction)
Dogs have many ways to show affection, such as cuddling next to you, circling around your feet, or licking you. However, at this time, you may notice that your dog's mouth smells very bad, which is unbearable. So what causes a dog's bad breath? There are many issues to pay attention to here. How can this situation be improved?
Generally, causes of a dog's fishy bad breath include long periods without brushing teeth, leading to excessive tartar and bacterial buildup. Also, if a dog suffers from oral diseases such as periodontitis or gingivitis, the dog's mouth will emit an unpleasant fishy odor. When a dog's mouth has an abnormal smell, it also indicates poor oral hygiene.
Dogs are carnivorous omnivores. After each meal, food residues easily stay in the gaps between teeth. If not cleaned in time, these food residues rot and breed bacteria. Serious cases cause a fishy bad breath. Additionally, a dog’s diet has a significant impact on its bad breath. If fed dog food, the odor may be less severe, but if the dog regularly eats human food, its breath will become very bad.
It is clear that the cause of a dog's bad breath is closely related to daily care and diet. Therefore, it is best to feed dogs dog food and regularly clean their mouths to prevent bad breath problems.