Home / Puppy / Puppy Development / 4 to 6 Months
This page is one stage of our puppy development series, which splits the first year into the stretches where life actually changes for a puppy and for the people living with one. The full timeline in a single read is our wave companion guide, puppy development week by week; this series goes slower, one stage at a time, so you can check what is normal right now, what feeding looks like right now, and which vet and socialization jobs belong to these exact weeks or months. Timings are typical ranges from the sources listed below. Small breeds often run ahead of large ones, and individual puppies vary more than any chart admits.
This is the juvenile stage: growth is still fast, the adult teeth finish erupting, and the puppy starts to look like a small, unfinished version of the adult dog rather than a baby. Energy climbs and attention spans lengthen, which makes training more productive and mischief more ambitious in equal measure. The AKC training timeline sets its by-6-months expectations here: polite play, including knowing what no biting means and following drop it; housetraining that is steadily reliable; the ability to be left alone for short periods; a recall the puppy is happy to answer; and impulse control that appears before food, play and greetings.
Confidence usually grows in this stage, and with it, range. Walks get longer in spirit, although the body still sets limits: growth plates are open, and repetitive jumping, long forced runs and endless stairs are still poor ideas, especially for large breeds. Free play on soft ground, training games and sniff-heavy walks do the exercise work safely.
Three meals a day is the standard pattern in this window, following the AKC step-down from four. Portions need regular review because growth spurts and quiet weeks alternate; weigh every week or two and adjust by body condition. Many owners discuss spay or neuter timing with their veterinarian during these months. The right timing depends on breed, size and sex, and the AKC notes that altering slightly lowers a puppy's energy requirements, a detail that matters when it happens in this stage.
Take the training out of the kitchen. Practice recall and leash skills in gradually busier places, proof the sit and stay against mild distractions, and keep sessions short enough that the puppy finishes wanting more. Social contact with other dogs should stay regular and well matched: a steady, polite adult dog teaches more in ten minutes than a chaotic group teaches in an hour. If adolescence arrives early in your breed, expect selective hearing and handle it by returning to easier versions of known skills rather than escalating pressure.
With the puppy vaccine series complete, veterinary care settles into parasite prevention, weight checks and the spay or neuter decision. Keep flea, tick and heartworm prevention on the schedule your veterinarian set, and book a weight and teeth check if you have not been in since the final puppy visit: the adult teeth should be erupting in the right order, and retained baby teeth, where a baby tooth stays while the adult tooth arrives beside it, are worth catching in this window.
Vet milestones for this whole series follow two published guides. The AKC's generally accepted guideline starts the core vaccine series at 6 to 8 weeks (distemper and parvovirus), gives a DHPP booster at 10 to 12 weeks, and a further DHPP booster plus rabies at 16 to 18 weeks, with lifestyle vaccines decided with your veterinarian. The MSD Veterinary Manual owner guide adds why the series repeats: the protection puppies get from their mother fades at an unknown point, so doses repeat every 2 to 3 weeks until about 4 months, and puppies should be kept away from unvaccinated dogs and dogs of unknown status until the series is finished. Your own veterinarian's dates for your puppy always win over any general chart.
Series navigation: all development stages | our single-page summary, puppy development week by week | the first year hub.
The AKC training timeline expects, by 6 months, polite play with a working drop it, steady housetraining progress, comfort being left alone briefly, a recall the puppy enjoys answering, and sitting politely before meals, games and greetings. Progress matters more than perfection at this age.
Short, frequent activity: free play on soft ground, sniffing walks and training games, scaled to breed and size. Avoid repetitive jumping, long forced runs and heavy stair use while growth plates are open, especially in large breeds.
There is no single right age. Timing depends on breed, size and sex, and many owners discuss it with their veterinarian during the 4 to 6 month window. For large breeds, waiting until growth is further along is often part of that conversation.
Three a day is the standard pattern between 3 and 6 months on the AKC feeding timeline, stepping down to two a day from about 6 months. Adjust portions by body condition and growth, and count training treats into the daily total.
Most puppies have their full set of 42 adult teeth by about 6 to 7 months. If a baby tooth is still in place while the adult tooth has erupted beside it, mention it at the next vet visit, because retained baby teeth can crowd the bite.
This page is general information drawn from the published guidance of the organizations listed under Sources below. It is not veterinary advice, and it does not replace your own veterinarian, who knows your dog. If your dog has eaten something toxic, contact your veterinarian, the ASPCA Animal Poison Control Center on (888) 426-4435, or the Pet Poison Helpline on (855) 764-7661 straight away. A consultation fee may apply on the helplines.
Last updated: November 2026. Timings are the typical ranges described by the sources above; individual puppies vary, and your veterinarian's advice governs vaccines and feeding changes. How we work: our methodology.