Knee Pain When Running: What to Do and When to Get Help
If your knee hurts when you run, stop rather than push through. This guide explains when to get help, what to tell your physiotherapist and how to discuss a return-to-running plan.
General information from the Nexus Physiotherapy team. For advice tailored to your symptoms, speak with a healthcare professional. How we write our advice
Key Points
- Sudden mileage or speed changes are a common trigger.
- Strength work for hips and quads can improve knee load tolerance.
- A gradual return-to-run plan reduces recurrence risk.
A painful run is a reason to stop and reassess
NHS running-injury advice says not to run with a painful knee. Do not use a race booking or a training streak as a reason to push through. The cause and severity of the problem affect when running can restart; a calendar alone cannot decide readiness.
Get NHS 111 advice now for a very painful knee, inability to move it or put weight on it, major swelling, a changed shape, locking or giving way. A hot red knee with fever also needs urgent advice. These are not situations for trying another training session first.
Build a running history that explains the change
Bring a short account of your usual week and the week before symptoms started. Include distance, faster sessions, hills, surfaces, strength work, footwear changes and days of rest. If you have a training app, select the relevant entries rather than trying to reconstruct months of detail at the appointment.
Describe where the pain is, whether it appeared suddenly or gradually, and what happened after stopping. Note walking, stairs, swelling and the following morning as well as the run itself. These observations help you explain the problem; they do not identify a diagnosis on their own.
Ask for a return plan with clear review points
Ask which everyday activities should be manageable before attempting running again, whether another form of activity is suitable, and which symptoms mean you should stop. Request a starting plan and a way to contact the treating professional if it does not go as expected. Do not borrow a friend's rehabilitation schedule because the pain sounds similar.
Once a clinician advises a return, agree which part of training to rebuild first and what you will monitor afterwards. A useful record includes the session, any symptoms and ordinary function later that day. A successful short session does not automatically show that a long run or race is suitable.
Make room to change the sporting goal
Explain whether your priority is a particular event, comfortable recreational running or another sport. Ask what information would lead to delaying that goal. It is better to make that decision openly than to interpret an exercise sheet as clearance to race.
NHS advice recommends getting knee pain checked if it remains after a week away from running, even when it is not severe. Seek help earlier for the urgent features above. Rehabilitation should address the actual findings rather than label every runner's knee pain as the same injury.
Further reading
Relevant NHS and NICE guidance includes advice on self-care and when to get medical help. Your recovery plan should reflect your own symptoms and diagnosis.
Need a personalised assessment?
Book an appointment if you would like a plan tailored to your symptoms.