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.

Choose the Right Sports Medicine Expert

November 15, 2022

If you're an athlete, chances are you'll require specialized care from a health professional during your career.

Henry Ford Health logoConfused about the differences between athletic trainers, sports medicine physicians and exercise physiologists, among other experts? You're not alone!

Each of these professionals has different levels of training, expertise and certifications, but the care they provide often overlaps. That's one reason why they often work together.

Sports Professionals Defined

Caring for athletes isn't always clear-cut. In fact, most athletes require a full team of professionals working in concert to stay at the top of their game. Yet confusion remains about which professionals you need to see for training, injury prevention, and recovery and treatment after an injury.

Each type of professional has its own set of experience, training and certifications. Here’s how they measure up:

· Sports medicine doctor: Sports medicine physicians are typically trained in orthopedic surgery, primary care or emergency medicine. These professionals have medical degrees as well as specialized training in sports medicine, including the prevention and treatment of injury. In addition to caring for conditions ranging from concussion to head colds, sports medicine physicians also focus on helping people return to sports safely and effectively after illness or injury.

· Athletic trainer: Athletic trainers take care of athletes from prevention through rehabilitation. In collaboration with a physician, these professionals offer insights that help minimize risk and prevent injuries. They evaluate athletes and provide immediate care and treatment, sometimes even on the sidelines. They also provide rehabilitation and reconditioning after an injury or illness.

· Exercise physiologist: Exercise physiologists study the effect of exercise on the muscular, cardiovascular, and sympathetic and parasympathetic nervous systems. They examine functional capacity and strength due to endurance training or strength training. These professionals may also test athletes for VO2max (your oxygen volume while training) and body composition (the ratio of fatty mass to lean mass).

· Physical medicine and rehab physician: These professionals treat a variety of medical conditions that affect the brain, spinal cord, nerves, bones, joints, ligaments, muscles and tendons. They take the whole body into account to pinpoint problems and enhance performance without surgery.

· Physical therapist: Physical therapists diagnose and treat individuals of all ages with conditions that limit their ability to move and perform daily activities.

Other Specialized Professionals Who Care for Athletes

In addition to the health care professionals described above, athletes may meet with a host of experts, including:

· Nurses and medical assistants
· Occupational therapists
· Cardiologists
· Neurologists
· Behavioral health specialists
· Dietitians
· Complementary medical practitioners, such as acupuncturists and chiropractors

None of these individuals are "fitness professionals," a term nearly anyone can use to describe a range of professional activities. Rather, these sports medicine experts are part of a comprehensive team that includes at least one physician. They are each licensed by the state to provide specialized care to athletes.

Personal trainers, on the other hand, focus on helping people find their way around the gym, hold them accountable to achieve their goals and help new exercisers and seasoned fitness enthusiasts stick to a workout regimen.

If you're an athlete, you need a team of health professionals who can provide comprehensive care to reach your highest potential. 

Christina Chapski, Ed.D., AT, ATC, is the Director of Athletic Training & Community Outreach with Henry Ford Sports Medicine.

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.