Snap, Crackle & Pop: Why Do My Knees Make Noises - And Should I See a Doctor?

Do you ever just go about your daily life and then, seemingly out of nowhere, your knee makes a noise?

You might call it a weird idiosyncrasy and not think twice about it—or you might turn to the Internet to try and find all of the potential issues that might be wrong with your knee.

But if your knee pops or cracks once in a while, it’s usually no cause for concern. After all, joints sometimes make noises, and knees are no exception (especially when you squat or sit down.)

“Infrequent knee pops and cracks are more common in the younger population, says Nancy White, M.D., a sports medicine physician at Henry Ford Health. “When you feel that ‘pop,’ it means your kneecap was pulled a bit outside of where it’s supposed to be, and so it’s correcting itself and getting back into position. You can kind of feel that something moved.”

If, however, pain or swelling accompanies a noisy knee, you should have it evaluated by a sports medicine provider. And if your knee is popping or cracking regularly, that's another sign you should have it checked out. 

“If you let it go, your knee could get worse,” says Dr. White. “There are recommendations a doctor can make to prevent this from happening, such as strengthening and flexibility exercises.”

What Is Knee Crepitus?

If your knee sounds like Rice Krispies crackling (or you experience a grinding sensation) it likely means you have knee crepitus, which can signify the beginning of osteoarthritis behind the kneecap.

“Knee crepitus is primarily caused by an issue called patellofemoral dysfunction,” says Dr. White. That sounds like a mouthful, but it means that your knee isn’t tracking straight up and down like it’s supposed to.

“There’s cartilage on the back of your kneecap and on the front part of your thigh, and the cartilage on the front part of your thighbone makes a groove so the kneecap can glide straight up and down in a floating position,” says Dr. White. “If the cartilage is worn down (and inflamed, worn-down cartilage signifies osteoarthritis), the kneecap can’t smoothly glide up and down, causing knee crepitus.”

If you are experiencing knee crepitus, you should see a sports medicine primary care physician, especially if it is accompanied by pain. They can recommend a variety of treatments, such as physical therapy and cortisone injections.

Still not sure if your noisy knees are cause for concern? When in doubt, call your doctor. After all, the sooner your doctor can examine it, the sooner you can prevent an issue from getting worse.

To learn more about your orthopedic condition or to find a provider, visit henryford.com/ortho.

Dr. Nancy White is a sports medicine physician with Henry Ford Health. She sees patients at Henry Ford Medical Center – Novi, and Henry Ford Medical Center – Bloomfield Township.

Put a Stop to Recurring Injuries

May 5, 2020

By Nick Parkinson, M.Ed., AT, ATC, TSAC-F
Henry Ford Health System

Recurring injuries happen — and they're especially common among single-sport athletes or people who focus on one type of exercise, like runners. The reason: You're working the same muscles repeatedly. The end result: Your joints, muscles and tissues get worn out.

Breaking Down Recurring Injuries

Overuse injuries are a big deal. Continuing to re-injure the same muscle groups can take you out of the game entirely and limit your ability to participate in other activities. Here's what you need to know about these all-to-common ailments:

What are Recurring Injuries?

Recurring injuries, also called repetitive and overuse injuries, are injuries that happen repeatedly in the same location. Think along the lines of tendinitis, stress fractures, shin splints and even carpal tunnel syndrome. Common sites include ankles, knees, hips and shoulders.

Who is at Risk for Repetitive Injuries?

Overuse injuries can happen to anyone, but they're more likely to occur among workers who do repetitive motions and single-sport athletes. The risk of these injuries also increases with age. They're more likely to occur if you don't recognize the impact aging can have on your muscles, joints and tissues and modify your activities accordingly.

Why Do Recurring Injuries Happen?

Recurring injuries happen when you overuse the same muscles without sufficient recovery. It's simple body mechanics: If you continue using compromised muscles, you're more likely to get reinjured. And once you get stuck in that same biomechanic loop, it's nearly impossible to recover without changing your routine and learning new techniques.

How Can You Prevent Recurring Injuries?

All sports have a risk of injury. The key is paying attention to your body and taking the appropriate steps to minimize your risk. Here's how:

• Use appropriate gear. Make sure you're wearing appropriate protective gear for the activity you're participating in and choose the right footwear.

• Alternate muscle groups. Instead of focusing on one type of exercise, switch things up. Incorporate low-impact activities, such as swimming, biking and water sports, and make sure you're not overloading any particular muscle group.

• Take rest days. It's important to give your muscles, joints and tissues time to recover. Two days of rest each week is best. If you play a sport, plan to have at least one off day per week and at least one month off per year.

• Strengthen muscles. Conditioning exercises can help strengthen the muscles you need to perform various activities.

• Use proper form. Overuse injuries are sometimes related to improper form during activity. Work with a professional to ensure you're using proper body mechanics and get back to your usual activities gradually.

Play it Safe

The best way to avoid recurrent injuries is to not get injured in the first place. Recover during the season — even if it means missing out on some play. It's better to show up to a game healthy but undertrained than to power through an injury and risk reinjury.

Talk to your doctor before starting a new activity or ramping up your current routine. If you're at risk of developing a recurrent injury, a professional can provide you with a workout regimen that can help prevent injury.

Most important: Don't let an overuse injury prevent you from being physically active. Instead, listen to your body, consult a professional and pace yourself. Treatment may involve avoiding a specific activity for a period of time, along with hot and cold therapy, massage and focused rehabilitation.

Nick Parkinson, M.Ed., AT, ATC, TSAC-F, is the Supervisor of Athletic Training with Henry Ford Sports Medicine and also leads Sports Performance training at the William Clay Ford Center for Athletic Medicine. Learn more about Nick.

Want to learn more? Henry Ford Health System sports medicine experts are treating the whole athlete, in a whole new way. From nutrition to neurology, and from injury prevention to treatment of sports-related conditions, they can give your athlete a unique game plan.

Visit henryford.com/sports or call (313) 972-4216 for an appointment within 24 business hours.