Causes of bad breath in Teddy puppies:

1. Teddy may have eaten food with peculiar smell. For example, dogs secretly eat garbage, or suffer from pica and often eat their own feces. The odor of food remaining in the dog's mouth can also cause bad breath in dogs.

2. Teddy may often eat human food. If your dog always eats human food, eats too greasy food or eats food with a pungent smell, it will cause bad breath.

3. Teddy may not clean his mouth regularly. When the dog eats, there will be food residues left between the teeth. If the owner does not have the habit of brushing the dog's teeth, the food residues will rot and ferment over time, giving off a smell.

4. Teddy may be lacking vitamins. When a dog’s body lacks vitamin B, it will lead to indigestion, oral diseases, and bad breath.

5. Teddy may have poor digestion. If your dog has constipation, diarrhea, or eats indigestible food that causes flatulence, food accumulation, etc., the smell of fermented food in the intestines and stomach will also be emitted through the mouth.