How Often Do Guinea Pigs Come In Heat?


Guinea pigs are generally induced ovulators meaning that they only ovulate when they mate.

This is different from humans and other animals who ovulate on a regular cycle whether or not they mate.

For guinea pigs this means that they will only have a litter if they are mated.

How often a guinea pig comes into heat depends on a few factors including her age and whether she has had a litter before.

Young guinea pigs (under 6 months old)and girls who have never had a litter usually come into heat every 3-4 weeks.

Once a guinea pig has had a litter she will usually come into heat every 4-6weeks.

If you have a guinea pig who is not in a regular cycle it is best to consult with a veterinarian to make sure there is no underlying medical condition causing the disruption.