Guinea pigs are adorable, fluffy creatures that can make great pets for both adults and children, as long as there’s a responsible individual around to supervise and provide care. They’re known for their playful personalities, cuddly demeanor, and charmingly cute noises. But how long do guinea pigs live?

As with most living creatures, the lifespan of a guinea pig can vary depending on several factors. In this blog post, we’ll explore the average lifespan of guinea pigs – and the factors that can change, alter, and affect it for better or worse.

The Stages of a Guinea Pig’s Life

The life cycle of a guinea pig can be divided into several stages: infancy, adolescence, adulthood, and finally old age. A baby guinea pig is known as a pup, and pups have a general gestation period of around 70 days. A male guinea pig – known as a boar – reaches full maturity after about three or four months. Female guinea pigs, called sows, are fully mature by 6-8 months old.

What Does a Guinea Pig Eat?

Guinea pigs are herbivores and eat mainly hay, vegetables, and specially-formulated guinea pig food concentrate. Hay forms the bulk of their diet, leafy green vegetables provide vitamins and minerals, while guinea pig food ensures balanced nutrition.

Feeding guinea pig food is important as hay and vegetables alone do not provide sufficient levels of nutrients. Guinea pigs should not be given fruit too regularly – a couple of times a week is fine in very small quantities as a treat.

At What Age Are Guinea Pigs Considered Old?

Generally speaking, guinea pigs are considered “elderly” when they reach the age of five, However, this can vary, and signs of illness and aging can start to appear from their third year onwards. These symptoms might include:

  • Weight loss
  • Reduced activity levels
  • Dull coat or thinning fur
  • Changes in behaviour
  • Signs of discomfort (such as stiff walking or squeaking)
  • Lack of appetite
  • Dental problems

If you notice any of these signs in your guinea pig, it’s essential to seek medical attention promptly. Regular vet check-ups and early intervention can help to address health problems and improve the lifespan of your pet.

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What Factors Affect the Lifespan of A Guinea Pig?

Throughout your guinea pig’s life, several lifestyle factors will ultimately influence how long they live. Let’s look at some of them in closer detail.

1. Genetics and breed type
Genetics and breed type play a significant role in the lifespan of guinea pigs. Some guinea pig breeds are prone to certain health problems that can affect their lifespan. For example, Abyssinian guinea pigs are prone to developing bladder stones, which can lead to urinary tract infections and other complications. So, it’s important to research and select your breed carefully.

2. Diet
Diet is another significant factor that can affect the lifespan of guinea pigs. Guinea pigs are herbivores, which means their diet should consist mainly of hay with a carefully measured portion of guinea pig food and a handful of fresh leafy greens. They also have a dietary requirement for Vitamin C, as they are not able to produce it themselves.

It’s essential to provide guinea pigs with a balanced and nutritious diet to ensure their overall health and wellbeing. A diet that’s high in fat and low in fiber can lead to digestive problems and obesity, which can decrease the lifespan of guinea pigs.

3. Exercise
Exercise is crucial for the health and longevity of guinea pigs. Guinea pigs are active animals and need plenty of space to move around and play. It’s vital to provide them with a large enclosure that allows for exercise and exploration. Additionally, guinea pigs should have access to toys and other enrichments that stimulate their natural behaviours, such as chewing and hiding. Regular exercise helps to keep guinea pigs healthy and reduces the risk of obesity, which can decrease their lifespan.

4. Medical care
Regular medical care also helps guinea pigs live long and healthy lives. Just like humans, guinea pigs can develop health problems that require medical attention. Make sure to take your guinea pig to the vet for regular check-ups and to address any health concerns promptly. Some common health problems that can affect the lifespan of guinea pigs include dental issues, respiratory infections, and skin problems.

How Long Do Guinea Pigs Usually Live For?

The average lifespan of a guinea pig is five to six years. However, with proper care and a healthy diet, some guinea pigs can live for up to ten years. No matter how old your guinea pig is, it’s important to keep an eye out for signs of ill health or changes in behaviour so you can give them the best chance of a long and healthy life.

guinea pig woman

7 Ways to Increase the Lifespan of Your Guinea Pig

While the lifespan of guinea pigs can vary, there are several things that you can do to support their health and maximise their longevity. Here are seven tips to help you increase the lifespan of your guinea pig:

1. Give them lots of space
Provide your guinea pig with the right size enclosure and plenty of space for them to explore. This will help to keep them active and healthy, as well as prevent boredom.

2. Feed them a balanced diet
A balanced diet is essential for the health and longevity of guinea pigs. Provide your guinea pig with plenty of hay, fresh vegetables and occasional treats, and a carefully measured portion of guinea pig food to ensure they get all the vitamins and nutrients necessary for good health.

3. Keep them active
Make sure your pet has plenty of space to run around and play, as well as access to toys and other enrichments that stimulate natural behaviours. Regular exercise helps to keep guinea pigs healthy and reduces the risk of obesity, which can reduce their lifespan.

4. Practice good hygiene
Keep your guinea pig’s living area clean and hygienic to prevent the spread of bacteria and other contaminants. As a general rule, your guinea pig’s enclosure should be thoroughly cleaned once a week and spot-cleaned every day.

5. Get them checked out frequently
Take your guinea pig for regular check-ups at the vet, so that any health problems can be addressed promptly. This is especially important as guinea pigs can develop dental issues, respiratory infections, and other medical problems that can reduce their lifespan.

6. Make sure your guinea pig has a companion
Having another guinea pig companion can help to reduce loneliness, stress, and boredom in your pet, which all contribute to a longer lifespan. Make sure to introduce the two slowly, look out for any signs of aggression, and provide enough space for them both to play and live together comfortably.

7. Spend quality time with them
Spend some quality time with your guinea pig every day, so your pet can get to know you and feel comfortable and loved. This will help to increase the bond between you and your guinea pig, while also reducing stress levels – both of which are essential for a long life.

By following these guidelines, you can help ensure that your guinea pig has a happy and healthy life. Remember, the best way to increase your pet’s lifespan is to provide them with love, care, and attention – the best recipe for a fulfilling life!

Richard Rowlands

Richard is a copywriter and content creator who works with pet and veterinary businesses. When he’s not researching, writing, or creating content plans, he enjoys spending time with his rescue dog, Otto, and exploring new places. Check out his blog for savvy pet parents at

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