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My guinea pig's front teeth fell out. Will they grow back? How long?

Updated on September 23rd, 2025

Pet's info: Small Animal | Guinea Pig | Male | unneutered | 8 months and 28 days old | 1.76 lbs

My 8 month's old Guinea pig's front upper incisors fell out maybe due to excessive cage biting as there was a female guinea pig in the house as well in another cage. He seems to be active as usual and eating as usual but he is having difficulty chewing so we are giving him mashed veggies and grass. I've heard that their teeth come again. In how many weeks can I expect his teeth to be back? I am a little worried for him.

1 Answer

Most Helpful Answer

Todd Cecil

Answered By Todd Cecil

Veterinarian

Published on November 12th, 2018

Thanks for reaching out about Snowy. Indeed, rodent incisors continue to grow throughout life. Most likely, Snowy was cribbing, and fractured the incisors. You should see some re-growth within the next 2-3 weeks. Keep an eye on the lower teeth as they will grow also and are not being worn off by the upper incisors. They might need to be trimmed by a veterinarian prior to upper incisors becoming the normal length.
You need to dissuade Snowy from continued cribbing.
You can cut vegetables thin and long, like a piece of hay. They have back teeth (cheek teeth: premolars and molars) that they use to grind and chew food.
Good luck.
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