Knee popping, snapping, cracking, or crunching noises are usually harmless and may be the consequence of aging joints. However, the sensation can also indicate a serious injury, such as a torn ...

Q: My knee makes a popping sound sometimes — should I be concerned? A: Knee noises can be unsettling, but they're not always a cause for concern. Let's break it down so you know when to shrug it ...