Why do our joints click?

Question

Apparently its when bubbles of blood pop or somthing, im not to sure.

Thanks, charlotte.

Answer 1

as he said that is true!

Answer 2

In between the joint surfaces, there is a sac of fluid called a 'bursar' (plural = 'bursae'). When you click a joint, the bursar pops from one side of the joint to the other, making the click.

The force involved in this loosens up the skin of the bursar, and so the came joint won't click twice in a row, until it has a chance to reset.