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.

Survey Shows Multi-Sport Participation Holding Steady, Led by Consistent High Achievers

By Geoff Kimmerly
MHSAA.com senior editor

December 14, 2023

The MHSAA's fifth Multi-Sport Participation Survey, conducted this spring for the 2022-23 school year, showed for the second-consecutive year that 44 percent of athletes at member high schools participated in more than one sport, and with several schools retaining high rankings in their respective Classes for the percentage of their athletes playing multiple sports.

Early and intense sport specialization has become one of the most serious issues related to health and safety at all levels of youth sports, as overuse injuries and burnout among athletes have been tied to chronic injuries and health-related problems later in life.

This past year’s survey showed 44.7 percent of athletes at MHSAA member high schools participating in two or more sports, a slight increase from the 44.3 percent who were multi-sport athletes in 2021-22 – and 1.9 percent higher than the percentage measured with the first survey in 2017-18.

For 2022-23, 47.5 percent of male athletes and 41.2 percent of female athletes played multiple sports. Class D has enjoyed the highest percentage of multi-sport athletes over all five years of surveys, this time at 62.5 percent, followed by Class C (59.0), Class B (49.6) and Class A (36.9).

Similar results for overall sport participation and multi-sport participation relative to enrollment size were seen by further breaking down Class A into schools of fewer than 1,000 students, 1,000-1,500 students, 1,501-2,000 students and more than 2,000 students. For both sport participation as a whole and multi-sport participation specifically, the smallest Class A schools continued to enjoy the highest percentages, while percentages then decreased for every larger size group of schools. This has remained consistent over the last five surveys.

Since 2018-19, the survey also has shown a slight increase in three-sport athletes across all four Classes and overall with 12.6 percent of athletes at MHSAA member high schools playing at least that many in 2022-23.

In early 2016, the MHSAA appointed a Task Force on Multi-Sport Participation as part of a continued effort to promote and protect participant health and address the issues leading to early sport specialization. The annual Multi-Sport Participation Survey was among results of the task force’s work.  The 2022-23 Multi-Sport Participation Survey received responses from 85.2 percent of member high schools, a few tenths more than in 2021-22 in setting a survey response record for the second-straight year. (No survey was conducted for 2019-20 as spring sports were canceled due to COVID-19.)

The MHSAA Task Force also recommended measuring multi-sport participation in MHSAA member schools to recognize “achievers” – that is, schools that surpass the norm given their enrollment and other factors that affect school sports participation.

Battle Creek Harper Creek, Detroit Cody and Grand Rapids Northview have appeared among the top 10 percent of their respective Classes four of the five years the survey has been conducted. Several more have appeared among the top 10 percent of their Classes three of the five years: Athens, Decatur, Detroit Douglass, East Grand Rapids, Gibraltar Carlson, Hamtramck, Hillsdale Academy, Holland Calvary, Kinross Maplewood Baptist, Livonia Franklin, Manton, Marquette, New Baltimore Anchor Bay, Ovid-Elsie, Parma Western, Warren Fitzgerald, Warren Lincoln and Warren Michigan Collegiate.

In Class A, Sterling Heights (85.7 percent) and Grand Rapids Union (84.0) posted the highest percentages of multi-sport athletes in 2022-23, with Livonia Franklin (73.1) and Battle Creek Harper Creek (71.3) also reaching 70 percent. In Class B, three schools achieved at least 80 percent multi-sport participation –Warren Michigan Collegiate (85.2), Detroit Cody (84.2) and Battle Creek Pennfield (81.5).

Class C saw eight schools reach 80 percent – Jackson Lumen Christi (92.5), Delton Kellogg (92.3), Decatur (86.2), Muskegon Western Michigan Christian (84.0), Indian River Inland Lakes (83.3), Detroit Crockett Midtown Science & Medicine (82.4), Martin (80.6) and LeRoy Pine River (80.0). Two Class D schools responded at higher than 90 percent multi-sport participation – Coldwater Pansophia Academy with 100 percent for the second-straight year and Carney-Nadeau (94.0) – followed by Brighton Livingston Christian (88.9), Carsonville-Port Sanilac (88.6) and Holland Calvary (87.0).

The full summary report on the Multi-Sport Participation Survey is available on the Multi-Sports Benefits page of MHSAA.com