Should a puppy bleed after being wormed?

If done properly with the proper medication for the proper parasites then the pup should be feeling better. You should take a fecal sample plus the pup into see your Veterinarian for a check up and to see what types of parasites he or she has. If you wish to deworm your pup yourself, use the proper medication and repeat the dose in 2 weeks. Get your pup's proper weight too. But the danger in doing this is that maybe the pup is sick with something else. That is the reason for taking your pet in to be checked out by your Vet and don't forget to bring in a stool sample from your dog.