Puppies need worming far more often than adult dogs, and the first-year rhythm is front-loaded for that reason. Intervals start at every 2 weeks until a puppy reaches 12 weeks, move to monthly until 6 months, and then settle onto whatever adult rhythm the vet advises for that dog. Vets describe this as the usual pattern of standard practice, and not as a prescription written for one animal: product choice and exact dates for a particular puppy are confirmed with its own vet, who weighs age, weight, previous treatments from the breeder and local risks before setting the schedule.
Why the Early Intervals Are So Close Together
Puppies commonly arrive already carrying worms passed from their mother before birth or through her milk, and they add to that burden eagerly, because exploring the world with the mouth is a puppy's main research method. Soil, other dogs' faeces, slugs and snails, and ordinary garden contact all offer routes in. A young puppy has little reserve: a worm burden that an adult dog tolerates can stunt growth, dull the coat and upset digestion in a small animal still building its body.
The close early spacing, a fortnight apart up to twelve weeks, exists because treatment clears worms present at that moment rather than guarding for weeks ahead, and new worms are maturing in the puppy continuously during early life. Monthly treatment until six months keeps pace as exposure continues while growth slows. After that, the adult rhythm a vet advises reflects the individual dog's lifestyle, household and region.
What the Vet Decides, and What Owners Record
The vet's role is product and timing for this puppy. Suitable products differ by age and weight, dosing is weight-specific, and some households, such as those with young children, livestock contact or raw feeding, may be advised a tighter rhythm. Never improvise with a product bought for another dog, a leftover from an older pet, or a guess based on the puppy's appearance. If a dose is spat out, vomited soon after, or a date is missed, ask the practice how to handle it rather than doubling up on your own judgment.
The owner's role is an accurate record. Write down each treatment's date, the product name the vet supplied and the puppy's weight at the time, plus what the breeder gave before handover and when. That record prevents both gaps and accidental repeats when two people in a household each assume the other handled it, and it gives the vet a clean history at every visit.
Signs, Hygiene and the Rest of the First Year
Worming on schedule sits alongside plain hygiene. Clear faeces from the garden promptly, discourage the puppy from eating what other animals leave, wash hands after handling and before eating, and keep children's sandpits covered. Watch for signals worth reporting: a pot-bellied look in a young puppy, loose stools, visible worms, scooting, poor growth despite a good appetite, or a coat losing its bloom. None of those proves worms by itself, and a vet investigates rather than the owner guessing, but reporting them with dates sharpens the picture.
By the end of the first year the rhythm should feel routine: monthly until six months behind you, an adult pattern agreed, and dates recorded where everyone involved can see them. For a household sharing puppy duties, KinsLe offers a tidy home for that schedule, because Care Teams lets carers assign each worming date as a duty on the puppy's shared task list, with every completion marked by a timestamp for all to see.