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 off and when it might warrant a closer look.
Most of the time, those popping or cracking sounds—technically called crepitus—are harmless. They’re often caused by small air bubbles in the joint fluid bursting or tendons snapping over bony surfaces as your knee moves. This is especially common if you’ve been sitting for a while or are doing certain activities like squats. If there’s no pain or swelling, these noises are usually just your knee’s way of saying, “I’m working!”
However, if the popping comes with pain, swelling, or a feeling that your knee is unstable, that’s a different story. Painful popping could be a sign of something more serious, like a ligament injury, meniscus tear, or early signs of arthritis. For example, if you feel a sudden pop during physical activity followed by swelling or difficulty walking, it’s a good idea to get it checked out by a doctor. Another thing to watch for is recurring or worsening discomfort. If your knee seems to lock, catch, or give out regularly, it might indicate a mechanical issue within the joint that needs attention. Early evaluation can make a big difference in these cases.
To keep your knees healthy and prevent problems, it’s important to maintain strong muscles around the joint. Exercises that strengthen your quads, hamstrings, and glutes can help stabilize the knee and reduce strain. Stretching and warming up before workouts also go a long way in keeping everything moving smoothly.
So, in short: If your knee pops but feels fine, it’s likely nothing to worry about. But if there’s pain, swelling, or instability—or if you’re just not sure—it’s always a good idea to consult a healthcare provider. Your knees work hard for you; giving them a little extra attention can keep you moving comfortably for years to come.
Brett Sanders, MD
Fellowship Trained Shoulder & Knee Specialist
Call today to schedule an appointment with Dr. Sanders or any of CSMO’s orthopedic specialists!
