You just got your puppy and it is 12 weeks old and has not been dewormed yet you dewormed it tonight but while it is sleeping white worms are falling out of his bottom how bab does he have them?

There are many types of worms and some can be deadly, especially to a young dog. The worms need to be identified and treated properly by a veterinarian. If signs of worms are that evident while puppy is sleeping (not just in stools), it suggests that the puppy's body is riddled with them. It should, without hesitation, be seen by a veterinarian before extensive damage occurs to internal organs.