Iliotibial band (ITB) syndrome: pain on the outside of the knee
Why the outer knee becomes sore in runners and cyclists, what contributes, and the usual route back to training.
Iliotibial band syndrome causes pain on the outer side of the knee, most often in distance runners and cyclists. The iliotibial band is a thick strip of tissue running down the outside of the thigh, and the pain tends to come on at a similar point in a run, then ease when you stop.
When to get urgent help
Go to A&E or call 999 if you have any of these. They can be signs of a fracture, infection, blood clot or other emergency.
- A limb that looks deformed, or a joint that you cannot move or put weight on after an injury
- A cold, pale or numb foot or hand after injury
- A hot, red, swollen joint with a high temperature
- A painful, swollen, warm calf, with or without breathlessness or chest pain
What it can feel like
- Pain on the outer side of the knee, sometimes with tenderness over the bony outer side
- Pain that starts after a certain distance or time in a run or ride
- Pain that is worse running downhill or on stairs
- Pain that eases quickly when you stop
Common contributors
- Friction or compression of the iliotibial band over the outer part of the lower thigh bone
- A rapid increase in distance, hills or intensity
- Footwear, foot posture and muscle imbalance around the hip
- Sometimes bike set-up (saddle height) in cyclists
General self-care
These are general comfort measures many people find reasonable. They are not a treatment plan, and what suits one person may not suit another.
- Modify activity. Reduce the distance or terrain that brings the pain on and keep fit with swimming or other low-impact work
- Build back gradually and avoid sudden jumps in mileage or hills
- Strengthen the hip and thigh muscles as part of a graded plan
- Check shoes and bike fit with a specialist if the problem keeps returning
- Pain relief as advised by a pharmacist or GP
When to see your GP
See your GP promptly, or call NHS 111, if you have any of the following:
- Pain after a significant injury, fall or twist
- Pain that is constant, severe or getting worse, or wakes you at night
- Unexplained weight loss, fever or feeling generally unwell with limb pain
Consider seeing your GP if:
- Pain that has not eased after several weeks of reduced load
- Knee swelling, locking, giving way, or pain after a twist
- Pain at rest or at night
Where an osteopath fits in
There is limited good-quality research showing that hands-on treatment changes the course of ITB syndrome, so I do not claim that osteopathy treats it.
What an osteopath can usefully do is confirm the pain fits ITB syndrome rather than another knee problem, assess the hip, foot and running mechanics, and guide a gradual return to running with strengthening. An NHS Tayside referral guide says modifying activity is the mainstay of treatment, with physiotherapy and podiatry or orthotics as the usual next steps. If the assessment suggests you need your GP, a physiotherapist or a specialist instead, I will tell you.
If you would like your symptoms assessed, you are welcome to book an appointment. Osteopathic care is not right for everyone, and if something needs medical attention first, I will tell you.
Common questions
Should I stretch or foam roll my IT band?
The IT band is a very stiff tissue that stretching probably lengthens little. The trust guide names modifying activity, physiotherapy including stretches and correcting muscle imbalances, and podiatry or orthotics where relevant. Strengthening the hip is a common part of rehabilitation.
Why does my knee hurt at the same point on every run?
ITB syndrome typically brings pain on at a fairly consistent point as the tissue becomes irritated, and it eases when you stop. Reducing the distance below that point and building up slowly is the usual first step.
Sources and further reading
Links open in a new tab. Sources were checked in October 2026.
Related guides
This page is general information to help you understand common aches and pains. It is not medical advice and cannot diagnose your problem. If you are worried about your symptoms, please speak to your GP or call NHS 111.