Medically reviewed by Cara Beth Lee, MDKey TakeawaysKnee popping can be harmless and caused by air bubbles in the joint.Knee ...

A harmless form of knee clicking, medically known as crepitus, occurs due to tiny air bubbles trapped in the joint fluid. These bubbles release during movement, producing a popping or clicking sound ...

Knee clicking is common and often harmless, caused by gas bubbles or tendons moving over bone. However, when accompanied by pain, swelling, or instability, it can signal a meniscus tear or arthritis.

There are certain sounds you expect to hear during a workout: heavy breathing, weights clinking on the rack, and the catchy melodies of a pump-up playlist. One that may very understandably catch you ...