I’d think it would hurt like heck having that rubbing over a broken bone.
I’d say so.
I had a green stick break in my left forearm when I was 10. It hurt without anyone touching me. I can’t imagine someone putting pressure on the area, except the doctor probably did, gently though.
I’ll never forget it. His name was Dr. Hammer. I really thought he was going to show up with one. So glad he didn’t!