I just realized my middle finger is bent at a weird angle

This is a really weird thing to suddenly realize 4 years into yoyoing, but now I can’t unsee it. Is this actually related to yoyoing? or is this just a thing.

My middle finger is bent towards my pinky side, which is why I thought it might be because of my throws.

Yeah mine is a bit bent too, I think the direction that it’s bent in depends on which side of your finger the knot is on