Reasons why cats don't like to eat:
1. A dirty food bowl can cause cats to lose their appetite due to their fastidiousness. Clean the food bowl for your cat every day after it finishes eating.
2. Dental problems are the most common cause. Generally, cats only drink water and don't want to eat because of tooth pain that prevents them from chewing food.
3. Digestive system problems: If a cat experiences regurgitation or vomiting, it indicates that the food is not being digested. This could be due to hairballs in the stomach or ingesting a foreign object, causing intestinal blockage and resulting in loss of appetite. 
4. Side effects of medication or vaccination. If your cat has taken medication or just received a vaccination, it will generally lose its appetite.
5. Stress and anxiety. Cats are very sensitive animals, and stress and anxiety can severely impair their appetite.
6. Parasites. Many cat owners associate parasites with their cats losing weight; however, in some cases, parasite infection in cats can also lead to loss of appetite.
7. Picky eater. Sometimes cats refuse to eat entirely because they are picky eaters.
How to get your cat to eat:
1. Feed your cat at fixed times, locations, and in fixed quantities. Owners can place the cat's food bowl at a fixed time and location every day, adding a certain amount of food to help the cat get used to eating at this time.
2. Don't give your cat treats indiscriminately. While treats are more appealing to cats than cat food, owners shouldn't give them treats randomly, as this can cause them to become picky eaters and refuse to eat their meals. It's more appropriate to use treats as rewards for training.
