No. The iliotibial band is dense connective tissue anchored to the thigh bone, and it does not lengthen meaningfully with stretching. Pain comes from repeated compression of the sensitive tissue underneath it near the knee. That is why stretching alone rarely changes symptoms, and why treatment focuses on hip strength, movement control and how much load the tissue is asked to handle each week.

Foam rolling may reduce pain briefly, but it does not lengthen the band or fix the cause. Rolling directly over the tender spot on the outer knee often makes symptoms worse, because that area is already compressed. If rolling helps you feel looser before a session, work on the thigh muscles rather than the painful point itself.

Because the tissue has a predictable tolerance to repeated compression. Each stride loads the outer knee, and once the accumulated load passes your current threshold, symptoms appear. That point is a useful measure: your physiotherapist uses it to set starting distances and to track progress. When you can run further before symptoms begin, tolerance is improving.

Location is the main difference. ITB syndrome causes pain on the outside of the knee, while patellofemoral pain, often called runner’s knee, sits around or behind the kneecap. Patellofemoral pain typically flares with prolonged sitting, squatting and stairs in both directions. Both can occur in the same runner, which is one reason a physical assessment matters before you change training.

Yes. The iliotibial band runs from the outside of the hip to below the knee, and some people feel aching or tightness along the outer thigh and hip. True hip pain on the outside is more often a separate problem involving the tendons or bursa there. Your physiotherapist tests both regions, because the hip commonly contributes to knee symptoms.

Research suggests women report ITB syndrome more often than men, which may relate to differences in pelvis width, hip control during running and training patterns. It is still common in male runners and cyclists. Sex is not the deciding factor: recent changes in training load, hill exposure and hip strength matter far more, and those are the things treatment can change.