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How can I accurately determine the age of a recently found kitten?

Updated On September 23rd, 2025

I found a kitten 13 days ago she looked like she was 1-2 weeks old I couldn’t tell. She had a severe eye infection 3 days ago her eyes changed and looked completely destroyed I will take her to the vet also yesterday she peed on her own. I just wanted to ask how can I tell how old is she?

2 Answers

Most Helpful Answer

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Answered By Oneal Bogan, DVM

Veterinarian

Published on July 4th, 2019

Hi there. You can age kittens by looking at their incisor teeth, these erupt at certain ages. Your veterinarian can also help you age your kitten based on the teeth. I hope that helps. Thanks for using Petco Pet Education Center, formerly Petcoach.

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Other Answers

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    Answered By Stacey Anstaett, DVM

    Veterinarian

    Published on June 21st, 2018

    Oh, sweet kitty! Its hard to tell if her eyes are open in the picture and hard to get perspective on her size. But I can tell you that if her eyes are still closed, she's probably less than 2 weeks old (usually their eyes open at about 8-14 days). Baby teeth start coming in at about 3 weeks old. So if her eyes are open and there are no baby teeth yet, she's probably somewhere around 2-3 weeks. If she's got a full mouth of baby teeth, she's probably about 6 weeks. I hope thats helpful!

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