Runner's knee: what it is, why it happens, and how chiropractic care can help

That persistent, achy pain around the front of the knee, especially after a run, has a name: runner's knee. It's one of the most frustrating overuse injuries out there — you feel fine warming up, and somewhere around mile two that familiar throb creeps in. The good news is it's very treatable, and you don't have to bench yourself indefinitely to recover.

What runner's knee actually is

"Runner's knee" is the common name for patellofemoral pain: pain around or behind the kneecap, usually brought on by activities that load the knee while it's bent, like running, squatting, and stairs.^[1] The exact cause isn't fully understood; it likely involves how load is shared across the joint behind the kneecap. Despite the name, hikers, cyclists, and anyone on their feet for long hours can develop it too.

Typical symptoms: a dull ache at the front of the kneecap, pain that worsens with running, squatting, or stairs, a grinding or clicking sensation, and mild swelling or stiffness after activity.

What's actually causing it

A few common culprits, often stacked together: ramping up mileage faster than your joints can adapt; weak hips and glutes, which let the thigh collapse inward with each stride and pull the kneecap off-course; movement habits like overstriding or heavy heel-striking; tightness in the IT band, hip flexors, or quads pulling the patella out of alignment; and worn-out or mismatched footwear subtly altering your gait over thousands of steps.

Making sure it's actually runner's knee

Not every knee issue in a runner is PFPS, and the right diagnosis changes the treatment. IT band syndrome causes sharp, burning pain on the outer knee at a predictable point in the run. Patellar tendinopathy shows up just below the kneecap, often worse the next morning. Meniscus irritation involves catching or locking. A thorough assessment before treatment matters, since the right care for one of these looks different from the right care for another.

How chiropractic care helps

The knee doesn't work in isolation: hip, pelvis, and ankle function all affect what happens at the knee with every stride. Exercise therapy, especially combining hip and knee strengthening, is the best-supported treatment, and an international consensus recommends it, along with short-term options like taping or foot orthoses, but not manual therapy on its own.^[2] So care here combines strengthening for the hips, glutes, and quads with soft-tissue and joint work as supporting pieces, a look at how you move, and guidance on modifying training rather than stopping entirely.

When to get it looked at

Patellofemoral pain isn't always self-limiting. In one long-term follow-up, more than half of people reported an unfavorable recovery 5 to 8 years later, and having pain for over a year at the start predicted a worse outcome.^[3] If knee pain has lasted more than two weeks, is getting worse, or is affecting daily activities beyond running, it's worth getting a plan.

Keeping it from coming back

A few habits that help: increase your weekly mileage gradually (though a trial of the popular "10% rule" in new runners didn't reduce injuries on its own^[4]), build hip and glute strength into regular training rather than only after something hurts, warm up before runs, and address soreness early.