Guinea Pigs

This is the Pet Science Daily research hub for guinea pigs. Here you’ll find evidence-based articles on guinea pig health, housing, social behavior, and welfare — written to help owners turn research into better everyday care.

Owners searching for guinea pig information usually want an answer to something specific: Why does my guinea pig have crusty skin or overgrown nails? Is it normal for guinea pigs to squeak and “popcorn” — and what does that mean? Do guinea pigs need a cage-mate, or can they live alone? How much space and floor time does a guinea pig actually need?

Guinea pigs are social, vocal animals, and research shows their health and behavior are closely tied to their environment. Nail overgrowth, skin problems, and eye issues are common but largely preventable with routine checks and proper husbandry — most owners simply aren’t told what to look for. On the behavior side, “popcorning” (a happy little jump) and cuddling are well-documented signs of contentment, while a quiet, withdrawn guinea pig in cramped housing is often signaling the opposite. Studies on housing and enrichment consistently find that guinea pigs kept in larger, more stimulating spaces with companionship show fewer stress behaviors and better long-term health.

The articles below translate that research into practical steps: what health problems to watch for, how to read guinea pig body language, and how much space and social contact the science actually recommends.