How Can I Tell When My Guinea Pig is Sick?
If your guinea pig gets sick, he may exhibit a number of physical signs, a change in behavior, or both, depending on the malady. But the signs are not always obvious, so be aware of your guinea pig's normal appearance and behavior so you will notice immediately when something is wrong. When you do notice abnormal behavior or physical signs, call your veterinarian and be prepared to describe the changes you've observed in your pet, then follow your veterinarian's advice.
Besides knowing how your guinea pig looks and acts normally, you should be aware of some of the common manifestations of illness or distress. Familiarize yourself with the examples below and you will have a good start: