Medically reviewed by Cara Beth Lee, MDKey TakeawaysKnee popping can be harmless and caused by air bubbles in the joint.Knee popping with pain could mean an injury like cartilage damage or a meniscus ...

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.

DEAR MAYO CLINIC: One of my knees makes an odd crackling sound (like the sound you might hear when scrunching plastic wrap) when I go down a flight of stairs. However, I don't have any knee pain.

As soon as you get up from the sofa “creak,” your knee clicks. At first you don’t think much of it, but when the chorus of crackles follows you throughout your day, you can’t help but wonder, “What ...

It’s a quiet morning. You lace up your shoes, step outside and begin a brisk morning stroll. But as you take those first few steps, there it is, a faint grinding noise, almost like the crunch of ...