The reasons why dogs have bad breath:

1. Because the teeth are not brushed regularly, a lot of plaque and even calculus will remain on the dog’s teeth, so the plaque and Dental calculus can cause a very bad odor in your dog's mouth.

2. Because the dog’s stomach cannot digest some food or does not digest it well, it will cause bad breath.

3. Stomatitis or other oral diseases in dogs can also cause bad breath in dogs.

4. A lack of vitamins or trace elements in a dog’s body can also cause bad breath.

Solutions to dog’s bad breath:

1. If it is caused by food residue, you can use a dog-specific toothbrush to brush your dog’s teeth, or use a pet Using special mouthwash for dogs can improve bad breath.

2. If it is caused by vitamin deficiency, bad breath can be eliminated by supplementing the deficient vitamins.

3. If it is caused by gastrointestinal digestion, the dog can be treated with probiotics and go to the pet hospital for gastrointestinal treatment in time.

4. If it is caused by oral disease, you need to find out the cause of the dog’s oral disease, and then use oral sprays, anti-inflammatory drugs, etc. to treat the problem.