Every time I walk down the stairs, my ankle clicks. It's subtle, but definitely noticeable. Click, click, click, click, click...you'll hear it the whole way down. When I first heard the noise I freaked out, sure that it meant major walking issues down the line. But my doctor told me not to worry, that the several sprained ankles I sustained as a kid resulted in a joint that traps a little extra air. The air comes out when I bend my foot to walk down a step, hence the clicking.