The reasons why cats vomit after eating:

1. Caused by infectious diseases. If a cat vomits after eating, it may be caused by infectious diseases such as rabies and feline distemper. Infectious diseases are also accompanied by symptoms such as diarrhea, fever, and poor mental health. If these symptoms occur, you must seek medical treatment in time.

2. Eat too much too quickly. If a cat vomits undigested food, it is usually caused by vomiting due to overeating. It does not rule out that the cat eats quickly and swallows the food before chewing it well, which affects digestion and causes vomiting.

3. Gastroenteritis and other diseases. When cats suffer from gastroenteritis, they often vomit after eating, and they are prone to diarrhea when suffering from enteritis.

4. Other reasons. Food irritation can also cause cats to vomit out the food they eat.

What to do if a cat vomits after eating:

1. Vomiting caused by eating too much. The owner should feed it an appropriate amount of food, and feeding it with a slow-feeding bowl can slow down the cat's eating speed.

2. Cause of disease. For cats that vomit after eating due to rabies, feline distemper, gastroenteritis, etc., owners should take them to the hospital for examination in time.

3. Food stimulation, such as cold, spicy food, etc. When feeding cats, you need to pay attention to mainly light and easy-to-digest pet food, and do not feed irritating food.