Creaky joints may sound like a sign that you’re getting older and your body is falling apart, but in most cases your noisy knees are nothing to worry about. Let’s take a quick look at why joints make noise and how to know if there’s really a problem.
source https://vitals.lifehacker.com/is-it-bad-if-your-joints-crackle-and-pop-when-you-move-1846941724