What is runner’s knee?
Runner’s knee is an umbrella term for overuse pain around the knee in endurance athletes. It most often refers to patellofemoral pain (around the kneecap) or iliotibial band syndrome (a sharp pain on the outer knee), which frequently overlap.
The common thread is load: the knee is being asked to absorb more, more often, than the surrounding muscles and tissues are currently conditioned for. It is rarely a sign of structural damage, and rarely needs surgery.
Signs and symptoms
- checkPain that builds during a run and eases with rest, then returns.
- checkAching around or behind the kneecap or a sharp pain on the outer knee.
- checkDiscomfort going downhill and down stairs.
- checkTenderness over the kneecap or the outer side of the knee.
Causes & risk factors
- A sudden increase in mileage, pace or hill work.
- Weak hip and thigh muscles altering knee mechanics.
- Worn or inappropriate footwear.
- Tightness in the iliotibial band and surrounding muscles.
Treatment options
Treatment is almost entirely about managing load and rebuilding capacity — not resting indefinitely.
Smarter load
A short period of relative rest, then a gradual, structured return to mileage avoids the boom-and-bust cycle.
Strength & mechanics
Hip and thigh strengthening corrects the mechanics that overload the knee.
Gait & footwear
Running technique tweaks and the right footwear reduce repetitive strain.
Recovery & outlook
With load management and strengthening, the large majority of runners settle within a few weeks to a couple of months and return to full training. Staying pain-free comes down to building mileage progressively and keeping the supporting muscles strong.