How does a guinea pig die at 3 years old?

It's impossible to say for sure how a guinea pig dies at 3 years old without more information. However, here are some common causes of death in guinea pigs around that age:

Common Causes of Death in Guinea Pigs:

* Old Age: 3 years old is considered middle-aged for a guinea pig. While some can live longer, it's not uncommon for them to start showing signs of aging around this time.

* Dental Problems: Overgrown teeth are a significant issue in guinea pigs, and they can lead to starvation and other complications.

* Urinary Tract Issues: These can cause pain, infection, and ultimately, death.

* Heart Disease: While not as common, heart issues can arise in guinea pigs, especially as they age.

* Cancer: Guinea pigs can develop various types of cancer, which can be fatal.

* Injuries: Guinea pigs are prone to injuries, especially if they are not housed properly.

* Infections: They can be susceptible to bacterial and viral infections, which can be life-threatening.

It's important to note:

* Genetics: Some breeds of guinea pigs are more prone to certain health problems than others.

* Environment: Poor living conditions, inadequate diet, and lack of proper care can contribute to health issues and shorten a guinea pig's lifespan.

If you suspect your guinea pig is ill, it's essential to contact a veterinarian immediately. They can examine your pet, determine the cause of their illness, and recommend the best course of treatment.