What happens when your ankles and knees crack?

Question

I recently had surgery on my ankle and have started walking again. I find when I stretch or move it, it cracks and pops a lot more then it ever did before. This doesn’t cause pain, and sometimes even feels nice, but what makes the noise?

In: 4417

Answer 1

Is it repeatable? If it’s something where you can make a sound every time you flex your ankle, that isn’t gas in the joint, it’s tendons flicking over something.