As a guinea pig owner you should be checking your pet's weight and size regularly - why not print off our downloadable Guinea pig Size-O-Meter and keep to hand.
Getting hands on is the key to this simple system. Whilst the pictures in the Guinea pig Size-O-Meter will help, it may be difficult to judge your pet’s body condition purely by sight alone. Some guinea pigs have long coats that can disguise ribs, hip bones and spine, while a short coat may highlight these areas. You will need to gently feel your pet which can be a pleasurable bonding experience for both you and your guinea pig.