What should I do if my cat's breath smells fishy or foul?
If a kitten's mouth smells fishy or foul, the pet owner should check if there is a problem. Common causes include the kitten eating fish or other fishy-smelling foods, or mouth ulcers or angular cheilitis. Oral diseases can affect appetite and further hinder nutrient intake, so it's important to take timely measures to address the issue.
If pet owners frequently feed their cats meat, such as fish, their breath will develop a fishy or foul odor after eating. If cats eat this for a long time and the owners don't clean their mouths, the leftover food will get stuck in the gaps between their teeth, naturally causing a fishy or foul odor over time, and the cat's teeth are also prone to problems. 
Pet owners need to clean their cats' mouths regularly. Although it doesn't need to be done every day, it should be done once a week. At first, the cat will be very reluctant. You can start by wiping the cat's teeth with a towel dipped in lightly salted water, and then gradually switch to a toothbrush.
A prominent sign of oral disease in cats is a foul odor emanating from their mouths, which can be smelled by anyone who gets close to the cat. The cat will also drool excessively, and this drool is also very smelly, frequently wetting the cat's fur and causing the body to smell bad as well.
When a cat is eating, it may let out a cry if the food is dry or hard, or if it touches an ulcer, and then spit the food out of its mouth.
Dietary adjustments can help prevent oral ulcers and angular cheilitis in cats, which are often caused by a lack of water and vitamins. Pet owners should not feed their cats a single type of food or cat food for extended periods. Instead, they should regularly introduce other nutritious foods, including meat, fruits, and vegetables, in a balanced diet. Adding vitamin B supplements is also important. Make sure your cat drinks plenty of water, and if necessary, use a syringe to give it water.
