Why does my dog's mouth smell?

The common causes of dog bad breath are:

Caused by bacteria: food residue in the mouth, anatomical defects causing food retention (exposed roots, tumors, or large ulcers), neuro muscular defects causing food retention (difficulty swallowing from the pharynx), food residue in the esophagus, tartar and periodontal disease, oral tissue damage, esophageal tumors/granulomas, severe stomatitis or glossitis.
Ingestion of toxic substances: decayed or spoiled food, feces.

Causes of Bad Breath in Dog's Mouth

The inside of a dog's mouth is a breeding ground for bacteria, which produces a large number of cavities between teeth, causing dog bad breath. Gingivitis, which usually accompanies bad breath, bleeding, and swelling, is a major cause of dog bad breath. Oral diseases such as oral ulcers, stomatitis, and oral tumors are also significant causes. Indigestion leads to the eruption of gases produced during digestion into the mouth, causing dog bad breath.

Symptoms of Dog Gingivitis

After a dog develops gingivitis, there are several symptoms. First, the gums become red and swollen, and touching them causes pain. Second, the teeth may show slight loosening and decreased chewing function. Third, the root of the tooth may bleed. Fourth, severe cases may have a fever. Treatment involves using oral sprays with antibacterial and anti-inflammatory properties.

How to Deal with Bad Breath in Dogs

Change dog food: possibly a problem with the dog food formula, try to feed your dog light-flavored food, and if possible, natural food. Anti-odor treats: Feed your dog some anti-odor treats to eliminate bad breath. Check for double teeth: Double teeth are not uncommon in pet dogs. If your dog's adult teeth haven't fallen out yet, the space between the two rows of teeth is prone to dirt and bacteria, causing bad breath. Feed less meat: Eating too much meat can cause bad breath in dogs. Recommend feeding less meat and preferring beef over pork. Regulate the intestines: If your dog has poor appetite and unusual bad breath, it's likely a gastrointestinal problem. You can feed some intestinal regulatory supplements. Brush teeth regularly: Dogs over 18 months old should have their teeth brushed regularly, preferably at least once a week.