The reasons why cute cats have bad breath:

1. Lack of vitamins. When a cat’s body lacks vitamin B, it will affect the cat’s digestion and absorption, lead to oral diseases, and cause bad breath.

2. Oral diseases. When a cat suffers from stomatitis, dental calculus, oral ulcers, or food stuck in the teeth, it will cause bad breath.

3. Unhealthy diet. If a cat eats too much meat, or if the cat is often fed human food, or if the cat eats irritating food such as heavy oil and salt, it will cause the cat to have bad breath.

4. Indigestion. When a cat suffers from gastrointestinal diseases, especially constipation and diarrhea, the food ferments in the intestines and stomach, and the taste will emit through the mouth.

5. Ketosis. If a cat suffers from diseases such as diabetes and causes ketosis in the cat, the cat's mouth will smell like a rotten apple.

6. Metabolic diseases. For example, with kidney disease, especially in older cats, the accumulation of toxins in the blood can cause bad breath in cats, because the kidneys of older cats are overwhelmed and can no longer effectively detoxify and filter.

7. Diabetes. High blood sugar will increase the burden on the body, thereby weakening the body's immune system, leading to excessive bacterial reproduction. At this time, the teeth will also be unhealthy, and diseases will cause symptoms of bad breath. If a cat develops ketoacidosis, vomiting and diarrhea are standard symptoms, and bad breath will also occur.

8. Food reasons. If you feed your cat soft food for a long time and do not brush your cat's teeth, food residues will ferment in the cat's mouth, causing a bad smell.

9. The cat just ate something strong. Most kittens have bad breath. If they eat strong-smelling food, some residue left in their mouths will emit some smell.

10. Teeth replacement causes bad breath. Cats will start to lose their teeth at about three and a half months old. Due to tooth loss, they will have bad breath and bleeding gums. In this regard, owners can use oral spray to disinfect cats, which will usually disappear after the tooth replacement period.