Almost all puppies have roundworms or hookworms from before birth or directly afterward transmitted through the mother's milk. Close confinement of puppies with their mother and litter mates and lack of hygiene aggravates the situation. Re-infection occurs when puppies walk in feces and lick their feet. Parasites can be life threatening to a puppy. Deworming on a schedule is paramount to his good health.
All nursing puppies should start on a deworming schedule at 2 weeks of age, and every two weeks until they reach 3 months of age. Each nursing puppy needs to be weighed on a digital kitchen scale to administer the correct amount of liquid dewormer as per the package instructions or your veterinarian's instructions. Draw up the required amount in a syringe and place the tip in one side of the puppy's mouth while holding him on your lap with his head tilted back. Very slowly squeeze the plunger to allow the puppy to drink the dewormer and swallow it.
Take a new puppy that you've just acquired to your veterinarian for a well-puppy visit for an examination. Provide a fresh stool sample for your veterinarian to examine under a microscope to determine if and what types of worms and treatment you need. Simply scoop up some fresh feces, put it in a plastic bag and seal it. Different wormers treat different types of worms. Your veterinarian likely will deworm your puppy in the office with the correct type of medicine in liquid or pill form or both, and make an appointment to do another fecal examination to determine your pet is worm free.
After your puppy receives his deworming medicine, he will pass worms in his feces. Keep his area clean so he does not walk in the feces, lick his paws and ingest more worms. Some puppies may have loose stools or vomit after deworming them. Wash your hands after petting or handling your puppy to avoid spreading fecal germs. It is best to keep children away from your puppy after worming them for a few days so they don't get fecal germs.
After the initial worming of your puppy, your veterinarian will recommend a monthly regime of a preventive wormer. It can include medications for heartworms and intestinal parasites in a tasty treat for monthly use. This proactive approach keeps him healthy and happy. Your dog also should have a routine veterinarian visit at least once per year to keep on top of any conditions that may occur.