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My puppy's age is unknown. What shots does he need and when?

Updated On September 23rd, 2025

Pet's info: Dog | American Pit Bull Terrier | Male | unneutered | 6 months and 30 days old

I have a puppy that seems to be about 4 or 5 months old not sure and he needs his shots how do I determine his age and what vaccine he needs

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1 Answer

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Answered By Jenny, DVM

Veterinarian

Published on July 31st, 2017

The easiest way to age a puppy is looking at their teeth. The top central incisions generally get replaced by adult teeth around 14-16 weeks. Typically puppies will need a minimum of 2 sets of vaccines depending on the age they were started as you want the last set to fall after 16 weeks of age. They usually get a rabies vaccine by 12-14 weeks and your vet has to administered that.

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