Guinea pigs (often called "cavies") are friendly and vocal pets, but they have a few unique health needs. Unlike many other animals, guinea pigs cannot make their own Vitamin C, so they rely entirely on you to give it to them! In 2026, we focus on a healthy diet and regular check-ups to keep your guinea pigs "wheeking" with happiness. This guide will help you know how to keep your pets in top shape.
The Vitamin C Rule
This is the most important health rule for guinea pigs: They need Vitamin C every single day. Without it, they can get a serious illness called scurvy.
- How to Give It: Provide fresh veggies like bell peppers, kale, and parsley. You can also use special Vitamin C tablets made for guinea pigs. For a full list of the best foods, check our guinea pig diet guide. Avoid putting Vitamin C in their water, as it loses its power very quickly.
Healthy Teeth and Tummies
A guinea pig's teeth never stop growing, and their digestive system needs to be constantly moving to stay healthy.
- Unlimited Hay: 80% of their diet should be fresh Timothy hay. This helps grind their teeth down and keeps their tummy working perfectly.
- Watch for "Quiet" Days: If your guinea pig stops eating or seems lethargic, it is a sign of a serious problem. Call a vet who knows about small animals right away.
Quick Tip: The Weekly Weigh-In
Because guinea pigs are round and fluffy, it can be hard to tell if they are losing weight just by looking at them. Weighing your guinea pigs once a week on a kitchen scale is the best way to catch health issues early. If their weight drops by more than an ounce, it is time for a check-up!
Keeping the Skin Healthy
Guinea pigs can sometimes get itchy skin from tiny pests like mites or fungal infections.
- Scratching: If you see your guinea pig scratching a lot or if their skin looks dry and flaky, they might need a simple treatment from the vet to feel better.
Bumblefoot: Protecting Their Feet
Guinea pigs have very sensitive feet. If they live on a wire floor or in a dirty cage, they can get painful sores called "Bumblefoot."
- Prevention: Always use solid floors with plenty of soft bedding like fleece or paper-based litter. A proper cage setup is the #1 way to prevent this painful condition.
Conclusion: A Long and Vocal Life
By giving your guinea pigs plenty of Vitamin C, fresh hay, and a clean home, you are helping them live a wonderful life. Most guinea pigs live for 5 to 7 years, and they will reward your care with lots of happy "wheeks!" Check out our other guides for tips on diet, cage setup, and fun guinea pig behaviors.