This page provides general health information and does not diagnose an individual condition. Persistent, worsening or concerning symptoms should be assessed by an appropriately qualified health professional.
What is knee pain?
Knee pain may begin suddenly after injury, develop with training or work, or appear over time with age-related joint change. The knee contains bone, cartilage, ligaments, tendons, muscles, menisci and bursae, and pain can arise from several tissues.
Common symptoms
- Aching, sharp or catching pain during walking, stairs, squatting or sport.
- Swelling, warmth or stiffness.
- Clicking or grinding.
- A feeling that the knee may give way.
- Difficulty fully bending or straightening the knee.
Common causes
Injury-related causes include ligament sprains or tears, meniscal injury, tendon or muscle strain, kneecap injury and fracture. Non-traumatic causes include patellofemoral pain, tendinopathy, bursitis, osteoarthritis and referred pain from the hip, back or surrounding tissues.
Why the whole lower limb can matter
Hip strength, calf function, ankle movement, foot mechanics, training load and footwear can influence how forces are managed through the leg. This does not mean every person with knee pain needs orthotics; it means assessment sometimes needs to consider the whole lower limb.
What can you do initially?
- Modify activities that clearly aggravate symptoms rather than stopping all movement unnecessarily.
- Use comfortable lower-impact activity if tolerated.
- Build activity back gradually.
- Consider professional guidance for recurring or limiting symptoms.
Seek urgent assessment if you cannot bear weight after injury, the knee is deformed, there is major swelling after trauma, or a newly painful knee is hot, red and swollen with fever or feeling unwell.
The Footpath Health approach
Footpath Health is designed to help you move from a symptom or question toward an appropriate next step without pretending that an online article can make an individual diagnosis. Depending on the problem, that next step may be self-management, podiatry, physiotherapy or GP assessment, imaging or specialist care.
Still not sure what the right next step is?
Tell Footpath Health what is bothering you and we can help guide you towards an appropriate healthcare professional.
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