Guinea pigs have specific housing requirements that are frequently unmet in commercially sold cages, leading to chronic welfare deficits in the majority of pet guinea pigs in Britain.
Guinea pig housing welfare is one of the most commonly observed welfare failures in British companion animal keeping. The standard hutch-and-small-cage combination sold in pet shops is demonstrably inadequate for a species that needs space to run, hide, forage, and express normal social behaviour. The welfare gap between current common practice and best practice is large and bridgeable with modest investment. Better pet shop guidance, stronger welfare labelling on housing products, and public education campaigns are the most accessible routes to improvement at scale.