Why is my finger Bent
Look at my profile picture. as you can see my middle finger is bent. it doesn't hurt.
It's just the way your finger is built. Many people have some little "oddity" about their hands. Both of my little fingers are crooked, but sideways, where yours if "up and down."
Maybe you bent it
My friend was born like that.
It's part of your character
It is just how you are, there's nothing wrong with you
May be you hit it on something & jambed it.
you might be double jointed...
you may have trigger fingers - if that's the case you should see a hand surgeon