Guinea pigs biting his cage bars.

[Pottyone]

I have 2 guinea pigs. One loves to bite the metal cage bars on their run. He never bites the hutch bars, but when out in the garden I quite often hear him biting the bars on the run. Does this matter?

[Moonstone6]

Mine does this all the time, i think its just their way of filing their teeth down. Either that or for attention! :)

[another-view]

Put more iron in his diet.

[Pottyone]

Is that a joke?!

[AmyLessThan3]

Could just be boredom, give them small branches from an apple tree to gnaw on, i'm pretty sure there not poisonous but id check with google first <3

[k8bailey]

I had a hamster who did the same, we gave him things to play with and chew and still he loved the cage bars, didn't seem to do him any harm though!