When cats sharpen their claws on wood it keeps them at the right length.

The only time we needed to clip our cat’s claws was when she was getting old and couldn’t sharpen them herself.

We noticed it when she was getting more and more passive, and on a whim we looked ar her claws, they had grown into her pads on her paws, we started cliping them regularly, but only slightly, and she was soon feeling much better.

This happened after and accident when she was out and we thought she got lost, but after a few days she was back in our garden, she was clearly in pain so we took her to the vet and one of her rear legs had been dislocated, it took weeks to get it to heal, and after that event she started having trouble with her claws.