Here you can find useful information.

Why do I need to check my guinea pigs?

Guinea pigs are so-called escape animals. They hardly let themselves notice that they are ill.
This makes it all the more important for the owner to check the guinea pig for changes in the body or behavior.

"The sooner changes are noticed, the sooner treatments can be made."

How often do I need to check my guinea pigs?

Every day, you should check your guinea pigs for behavior or changes-be it eating, walking or breathing.

"GPRP should be done once a week, preferably on a day where you can reach the vet in case of an emergency."

What utensils do I need and what do I need to be checked?

You can find this information here.