Back in the days it was also called a "bible bump" because the biggest/only book people had was a bible and they used it to smash those bumps.
I did it once, felt a weird warmth in my wrist. Eventually had to surgically remove both (as in both wrists), after emptying them tens of times. It was weird, clear yellowish substance that couldve been instant glue.
Stuff that came out of mine looked like warm translucent mayonnaise.
My godfather straight up "booked" my mom's........ and he's a chief of medicine at a fairly large hospital. It may not be standard practice, but it sure as hell works!