If you need to check whether the kitten has any disease, first check the cat's mental state. Choose an active cat. Look at the cat's eyes. It is better if there are no tears or secretions. Check the cat's nose to see if there are any signs of pus. After looking at the cat's Stroke the cat's skin in the opposite direction with your hands. It is better to make sure it is smooth and free of foreign matter. Furthermore, before purchasing, ask the buyer to test the feline distemper strips on the cat to see if there is any disease, and ask whether it can be guaranteed for 7 days before purchasing.