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.

Symptoms of a Meniscus Tear — and When to Seek Treatment

April 2, 2024

Meniscus tears are not one size fits all: Sometimes they cause no pain, other times they’re excruciating.

Henry Ford HealthOnce in a while they heal or adapt on their own, but more often than not they require physical therapy or surgery.    

“Your meniscus is a fiber elastic cartilage that acts as a shock absorber for the knee,” says Ahmad Bazzi, M.D., a sports medicine physician at Henry Ford Health. “It also helps stabilize the knee joint. But when it tears — which can occur in young athletes after a pivot injury or in older people who have arthritis — it can be painful.”

Here, Dr. Bazzi shares symptoms of a meniscus tear and when to see a doctor. 

What Does A Meniscus Tear Feel Like?

Depending upon the level of injury and type of tear, meniscus tears can either be asymptomatic or cause symptoms like:

  • Locking. When the meniscus tears, a piece of it might move into the knee joint, causing mechanical issues like stiffness and locking of the knee joint.
  • Catching or clicking. This often feels like a sudden ‘click’ in the knee joint, where it suddenly gives out while you’re walking or doing certain movements. 
  • Localized pain on the inner or outer part of the knee. In young athletes, a meniscus tear often causes an impaired range of motion and localized pain on the inner or outer part of the knee. 
  • Pain and swelling. In older people, a meniscus tear often causes swelling and an overall aching pain in the knee.  

Treatment Options For Meniscus Tears

A meniscus tear can only heal on its own if the tear is on the outer part of the knee where it has better access to blood supply. If you’re experiencing pain a few days after injury and you have limited range of motion, instability and/or swelling in the knee, Dr. Bazzi recommends seeing a doctor to get an examination and, if needed, an MRI for diagnosis. 

“It’s hard to tell what type of meniscus tear you have if you haven’t seen a doctor,” says Dr. Bazzi. “If you have a mechanically unstable tear and it goes untreated, it could lead to worsening range of motion and stiffness, or worsening arthritis. It’s important to get seen by a doctor to get an accurate diagnosis and the proper treatment. It may take one to three months for a full recovery.”     

Here, Dr. Bazzi shares treatment options:

Surgery

If someone is having mechanical symptoms like locking or catching, surgery may be considered right away, especially if it’s an athlete younger than 40 years old. “Meniscus tear surgery has a shorter recovery compared to other knee surgeries,” says Dr. Bazzi. “Surgery could either consist of a meniscectomy, which is partial or complete removal of the meniscus, or sometimes just a meniscus repair.”  

Hyaluronic acid or cortisone injections

Non-operative treatments are often recommended for older people who have degenerative tears due to arthritis. “This is because meniscus surgery doesn’t often relieve their pain since they have underlying arthritis, meaning they have cartilage loss in the meniscus,” says Dr. Bazzi. 

Instead, a cortisone injection, which is an anti-inflammatory medication that can be injected into the knee, can reduce inflammation, swelling and pain caused by arthritis.

A hyaluronic acid injection may also be considered, which adds cushioning in the knee. “Hyaluronic acid is one of the substances that make up our cartilage, so this injection helps us mimic the lost cartilage,” says Dr. Bazzi. “It also has anti-inflammatory properties.” 

Physical therapy

Physical therapy is another great option, especially for older people who need non-operative treatment options. It can help the knee adapt to the tear, reduce pain and encourage full range of motion. “Physical therapy for meniscus tears focuses on balance exercises and exercises to strengthen the muscles around the knee,” says Dr. Bazzi. “This helps to uphold the knee joint to achieve full range of motion and strength while being pain-free.” 

To find a sports medicine provider at Henry Ford Health, visit henryford.com/athletes or call 313-651-1969.

Reviewed by Ahmad Bazzi, M.D., a sports medicine physician who sees patients at Henry Ford Medical Center – Fairlane.