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How often do guinea pigs go into heat and what are the signs?

Updated On September 23rd, 2025

Do guinea pigs go into heat? If so, how often?

1 Answer

Most Helpful Answer

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Answered By Laura E. McRae

Veterinary Technician

Published on March 15th, 2015

Guinea pigs can go into heat, on average, every 15-17 days (with a range of 13-21 days). When a guinea pig is in heat she can show the following signs: increased activity, swollen vulva, chasing cage mates, swaying hips/hind end, low pitched vocalizations, and arching her back and then putting her rump in the air.

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