Do Guinea Pigs Go Into Heat?


Guinea pigs have a uterus like every other mammal that hasn’t been surgically altered. However, although they may have the very same body parts as humans, dogs, and other species that bleed during their estrus cycles, bleeding throughout guinea pig heat is not normal. For that reason, if your guinea pig is bleeding, she requires to see an exotics vet as soon as possible.

Heating Cycle in Female Guinea Pigs

Guinea pigs live up to 6 years, so they have to load a lot of living in that brief time to keep the species going. Nature has a way of looking after such things, which might discuss why women can recreate a lot. Female guinea pigs enter season throughout the year.

Female Guinea Pig waiting for heating cycle

Female Guinea Pig waiting for heating cycle

Heating Cycle and Pregnancy

Female guinea pigs reach sexual maturity as early as 2 months of age and can reproduce up until they’re about 5 years old. Normally, the heat cycle lasts in between 14 and 19 days, so a female can go in and out of heat every two or three weeks. Throughout that time, there’s about a half a day when she is responsive to reproducing. If she conceives, she’ll carry her brood for approximately 68 days, and it’s typical for her to enter into heat simply hours after shipment. It’s not unusual for a nursing guinea pig to be pregnant at the very same time.

When to Avoid the Breeding in Guinea Pigs?

A female guinea pig should not be bred before she’s 4 months old and weighs a minimum of a pound. Nevertheless, if she’s reproduced when she’s too old, she can have a tough time providing her infants. In between 7 and 12 months of age, a female’s pelvic bones fuse, making natural shipment exceptionally hard, normally needing a cesarean section. If you do not desire baby guinea pigs, go over spay/neuter surgery with your vet or keep the females and males separated.

Guinea Pig and Reproductive Problem

Condition is not good?

It is possible the bleeding could still be from your guinea pig’s uterus however if that’s the case it is not a normal thing.

She may have a severe problem with her ovaries, uterus, and even her bladder. Infections, growths, and uroliths (bladder stones) are some concerns that can trigger bleeding.


Guinea pigs can get a pyometra (which implies pus in the uterus) just like dogs and felines do and a severe infection causes it. Antibiotics are not strong enough to combat off that bad of an infection, so emergency situation surgery to spay your guinea pig is the only remedy.


Bladder stones, likewise known as uroliths, are similarly common in cavies. Bladder stones are triggered when tiny crystals in the bladder clump together to form a stone. These crystals are formed from modifications in the pH of the urine, and some research recommends that a diet high in calcium be also at fault. Surgery is the only option to gets rid of stones too large to travel through the urethra. Your exotics veterinarian will eliminate bladder stones by taking radiographs.

Urinary Tract Infection

An infection in the urinary tract and cystitis (inflammation of the bladder) can trigger blood to pass in the urine. You might see blood tinged bed linen or leaks when she isn’t trying to urinate that you might believe from the uterus however it might be from her urine instead. If your cavy will urinate on a non-porous surface area, such as a hard kitchen floor or empty plastic litterbox, attempt to gather the urine with a syringe or pipette to bring to your exotics veterinarian.

They will test the urine for infection and confirm your guinea pig has a UTI (urinary tract infection) or cystitis.


A mass or growth, malignant or not, on any part of a guinea pig’s reproductive tract or urinary tract, may trigger you to see blood being passed. The mass might be annoying to whatever it is growing off of, or it may have started bleeding itself, and your guinea pig is merely passing the blood that is coming from the growth itself. If this holds true, surgery is as soon as again what is needed to see if the tumor can be removed.

Surgical Concerns

Whenever surgery is carried out threats are involved. Guinea pigs stressed very quickly and given that they can not be intubated during surgery it can be hard to keep an open air passage. Always keep the risks in mind and see an experienced exotics vet to run on your precious cavy. Specialists likewise suggest bringing your other guinea pigs together with your ill guinea pig to the health center to assist keep her calm.

Preventative Measures

To avoid the possibility of your guinea pig getting a tumor or infection in her reproductive tract get your guinea pig spayed at about 4-6 months of age. This will also avoid her from getting pregnant after her pelvic bones fuse.

To assist in the prevention of uroliths make sure to feed your guinea pig a balanced and suitable diet of green veggies, timothy hay or sweet yard, and a little number of pellets along with sufficient fluid intake and Vitamin C. A diet consisting of alfalfa hay in adult cavies and many alfalfa pellets can help uroliths form.


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