Re: What makes my ankle pop?

Hi Ariel

Joints that pop are quite common - most kids have an annoying habit of 
cracking their fingers which usually drives their parents mad!

Joints are held together by ligaments, and muscles are joined to bones 
around the joints by tendons. These tendons are hard gristly things which 
slide up and down inside sleeves or sheathes, rather like brake cables on 
bikes. Lubricating fluid keeps the inside of these sleeves moist and 
allows the tendons to slide up and down freely, but sometimes the tendon 
gets a bit sticky and when it gets stretched, frees itself inside its 
sleeve with a pop. 

In truth I don't think anyone knows exactly for sure why joints do pop 
like this, but this is as good an explanation as I've come across.

Best wishes

Doc C-P