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.

6 Tips for the Best Cold-Weather Workout

December 6, 2022

With temperatures getting colder, it may be tempting to get back to the gym.

Henry Ford Health logoBut it’s still possible to get your exercise outdoors if you prepare properly to counter the chillier conditions that accompany living in Michigan this time of year.

Winter Weather Workout Tips

While cold air can make it challenging to breathe, our bodies adjust to reduced temperatures over time. The key thing to watch for is hypothermia (dangerously low body heat).

"Viruses are more likely to attack our bodies if we're in a cold state," says Ramsey Shehab, M.D., a sports medicine specialist at Henry Ford Health. "If your internal body temperature drops significantly, it can suppress your immune system and make you more vulnerable to infection."

The good news: Adopting these six strategies can help ensure your outdoor workouts are safe and effective.

Check the forecast. Know what the outdoor weather is and plan accordingly. Pay attention to the temperature, wind and moisture level. If temps dip below zero, the wind chill is extreme, or it's raining or snowing, exercising outside can be risky.

Dress in layers. Dressing too warmly can increase your risk of overheating (even in frigid air). Instead, dress in layers so you can remove layers as you warm up. "The innermost layer should be made of moisture-wicking material," Dr. Shehab says. "The middle layer should have thermal protection like wool or fleece, and the outermost layer should be waterproof and breathable to protect you from wind, rain and sleet." If you get wet and moisture soaks through your clothing, you may not be able to keep your core body temperature up.

Pay attention to your hands, feet and head. When you're engaged in a heart-pumping workout, blood flows to your core, leaving your fingers, toes and head vulnerable to the cold. Wear a hat, gloves and warm socks. If it's especially chilly, consider wearing a scarf.

Take time to warm up (and cool down). Instead of leaving your cozy house and launching straight into a sprint, take time to warm up your major muscle groups. "Your joints may be stiffer when it's cold, so warming up and stretching out is especially important during the winter months," Dr. Shehab says.

Stay hydrated. People tend to think more about dehydration during the summer months, but you can get dehydrated in the winter, too. "Proper hydration before, during and after exercise is very important, not just to maintain health and well-being, but also to stave off infection," Dr. Shehab says.

Take a vitamin D supplement. Even though you're exercising outdoors, sunlight is in low supply in Michigan during the winter. To keep your immune system humming, consider taking a vitamin D supplement. "Making sure you have sufficient vitamin D can enhance your bone health, boost your immune system and keep your hormones in balance," Dr. Shehab says.

Get Savvy About Outdoor Workouts

Frigid temperatures can create obstacles for even the most enthusiastic exercisers. While it's tempting to table exercise until warmer weather returns, there are things you can do to make outdoor — and indoor — workouts more enjoyable.

You don't have to stick to the same routine of running, walking and circuit training. Take advantage of the winter chill to participate in activities like ice skating, sledding, hiking, skiing and cross-country skiing. You can even take interval workouts outdoors. Climb stairs, hike up hills or just play with a kettlebell in the snow.

"Exercise is medicine," Dr. Shehab says. "It can sometimes replace medication for people who have diabetes, hypertension and other chronic conditions. It's good for the mind and the body, and it can help stave off infections, including COVID-19."

The caveat: Working out, outdoors or indoors, is not recommended for people who are currently battling the coronavirus. Instead, it's important to preserve your energy. Once your symptoms begin to improve, you can gradually increase your exercise level.

To find a doctor or athletic trainer at Henry Ford, visit henryford.com or call 1-800-HENRYFORD (436-7936).

Dr. Ramsey Shehab is the deputy chief of Sports Medicine at Henry Ford Health. He sees patients at the Henry Ford Center for Athletic Medicine and Henry Ford Medical Center - Bloomfield Township.