Cats with gastroenteritis usually die in about a week. The specific time depends on the cat's constitution and whether the condition is serious. Cat gastroenteritis usually causes vomiting, diarrhea, dehydration, poor energy, loss of appetite, blood in the stool, etc. If not treated in time, it will die. Therefore, once a cat is found to have gastroenteritis, it needs to be sent to the pet hospital for examination and treatment immediately to avoid Delaying the illness can lead to the death of the cat.