What is patellofemoral pain?
Patellofemoral pain syndrome (PFPS) is the clinical term for what is commonly called runner's knee. For a full guide including causes, symptoms, and rehabilitation advice, see our Runner's knee page. This page is for visitors searching by clinical term.
Patellofemoral pain syndrome (PFPS) is pain arising from the patellofemoral joint - the articulation between the kneecap (patella) and the groove on the front of the femur (thigh bone) through which it tracks during knee movement. It is the most common cause of anterior (front-of-knee) pain in active people, affecting runners, cyclists, hikers, court sport players, and anyone who performs repeated squatting or stair climbing.
The pain arises when the kneecap does not track smoothly through its groove during movement, creating excessive pressure and friction on the cartilage and soft tissue structures on its underside. This mismatch in patellar tracking is most commonly driven by weakness in the quadriceps (particularly the VMO - vastus medialis oblique) and hip abductors, which fail to control the knee alignment during loading, and by tightness in the IT band and lateral retinaculum, which pull the kneecap laterally.
Understanding patellofemoral pain
Symptoms to recognise
- Dull aching pain around or behind the kneecap, typically worsening during and after activity
- Pain that is worst going downstairs, downhill, or after prolonged sitting with the knee bent
- A grinding or crepitus sensation felt under the kneecap during movement
- Mild swelling around the kneecap in more reactive cases
- Pain that improves with rest and returns when activity resumes
How Bearhug helps
The Bearhug knee support provides graduated compression around the patella and the soft tissue structures of the anterior knee, improving patellar tracking, reducing swelling, and enhancing the proprioceptive feedback that helps the knee align correctly during movement. Warmth from the bamboo fabric relaxes the surrounding musculature and reduces pain associated with protective muscle guarding.
For a comprehensive guide to patellofemoral pain - including the rehabilitation exercises that address the underlying causes - see our Runner's knee page.
The information on this page is provided for general guidance only and does not constitute medical advice. If you are experiencing pain or injury, please consult a qualified healthcare professional for a proper diagnosis and treatment plan. Bearhug products are Class 1 medical devices designed to support - not replace - medical treatment.