The charity says that one of the biggest issues it faces with guinea pigs is multi-animal households where breeding has become out of control.
Dr Jane Tyson, the RSPCA’s rodent expert, said: "We would always advise owners to have their male guinea pigs neutered before introducing them to a female. We also find that they can sometimes be mis-sexed by the seller or previous owner which leads to accidental breeding so it’s also important to make sure that guinea pigs see a vet regularly who would be able to spot if they have been identified incorrectly.
“Many of the guinea pigs that come into our care have come from a multi-animal home where there have been large numbers of guinea pigs living in often cramped, dirty and unsuitable conditions. This also means that they may have experienced very little handling and are wary and fearful of human hands and need their confidence building up in RSPCA care.
“This is why, this Guinea Pig Appreciation Day, we wanted to encourage people to neuter their guinea pigs and help tackle the problem of overbreeding.”
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