A kitten that sneezes but does not have a runny nose and is in good spirits may be caused by catching a cold, viral infection, dust, or foreign matter in the nose. The specific cause needs to be determined based on the cat's condition. If the cat has vomiting, diarrhea, etc., it needs to be sent to a pet hospital for examination and treatment; if the cat has no other symptoms, you only need to pay attention to keeping the cat warm, and pay attention to environmental hygiene and litter box hygiene.