10/10/2026
That grinding, crackling, or popping sound in your knee has a name: crepitus.
Crepitus can be common, but when it comes with pain, swelling, weakness, or limited movement, it may be worth getting checked.
Dr. Lin explains that those sounds can be associated with things like cartilage changes, meniscus irritation, or other changes inside the joint.
The important part isn’t just the sound. It’s understanding why it’s happening and whether it’s affecting how your knee functions.
If your knee is painful or your movement is changing, don’t rely on guesswork. A proper evaluation can help identify what’s going on and what treatment options may make sense.