Hip pain in runners gets lumped together as if it’s one thing — but where the pain is, when it comes on, and what makes it worse all point to very different structures. Treating the wrong one is why so many runners stay stuck. Here’s how to roughly tell the common causes apart, and what each one needs.
IT band syndrome — outer hip and thigh pain
Pain on the outer side of the hip and thigh, sometimes extending down toward the outer knee. Classic pattern: fine for the first 10–15 minutes of a run, then builds to a point where you have to stop, settles quickly with rest, and repeats the next run.
The iliotibial band is a thick tract of connective tissue running from the hip down to the outer knee. It’s not a muscle, so you can’t stretch it meaningfully — the tension is driven by the muscles feeding into it (particularly the tensor fasciae latae and gluteus maximus). The underlying problem is almost always a hip strength deficit: when the hip doesn’t stabilise well under load, the IT band is placed under greater repetitive stress with every stride.
What helps: reducing the immediate load (cutting mileage, avoiding hills and camber), hands-on work to the hip and TFL to settle the irritated tissue, and then a structured hip strengthening program — particularly the gluteus medius, which is the main stabiliser of the hip during the stance phase of running. Runner’s knee involves the same hip weakness mechanism at the knee →
Hip flexor strain — front of hip pain
Pain at the front of the hip, groin, or top of the thigh. Worse with uphill running, speed work, or any activity that drives the knee up high. May feel like a “pulling” sensation or a sharp catch at end-range hip flexion.
The hip flexors — primarily the iliopsoas — drive the leg forward and lift the knee. They’re loaded heavily in faster running and trail running. Strains typically happen when the load spikes faster than the tissue can adapt: a sudden increase in speed work, hill training added too quickly, or a single hard effort after time off.
What helps: modifying the training that loads hip flexion most (speed work, hills) while keeping easier running going; progressive loading starting with isometric holds and building toward strength-through-range; and addressing any hip mobility restriction that’s placing more demand on the flexors to compensate.
Greater trochanteric bursitis — lateral hip pain
Pain directly over the bony prominence on the outer hip (the greater trochanter). Tender to press, worse lying on that side at night, aggravated by stairs and crossing one leg over the other, as well as running. May develop without an obvious acute event.
The bursa here is a fluid-filled sac sitting between the bony prominence and the overlying tendons and IT band. It gets compressed and irritated when there’s increased load or friction across it — most commonly from gluteal tendon weakness, which allows the femur to drop and increase compression during stance. It’s more common in women and in runners who have increased their volume quickly.
What helps: reducing the compressive loads immediately (avoid sitting cross-legged, sleeping on the painful side, and running on cambered surfaces); hands-on work to reduce the irritation; and progressive gluteal strengthening. Avoid aggressive stretching of the IT band — it compresses the bursa further and typically makes it worse.
Gluteal tendinopathy — deep lateral hip pain
Often confused with bursitis because it’s in a similar location. Pain sits at or just above the greater trochanter, worsens with load (running, stairs, standing on one leg), and is often worse after sitting for a long time. The distinctive feature: it responds differently to the same provocative tests as bursitis, and it responds to loading where bursitis does not.
The gluteal tendons (particularly gluteus medius and minimus) can develop a tendinopathy through the same mechanism as other tendons — load exceeds capacity, the tendon doesn’t recover, and it becomes sensitised and structurally changed. This is more tissue capacity than inflammation, and it needs progressive loading — not rest — to resolve.
Hip stress reaction — deep groin or anterior hip pain
Less common but important to recognise: deep groin or anterior hip pain that worsens progressively during a run and doesn’t settle with standard load management. May be worse at night or at rest. Risk factors include high weekly mileage, rapid increases in training load, low bone density, and inadequate energy intake.
A femoral neck stress reaction is a bone stress injury — the bone is absorbing more load than it can recover from. This needs imaging (MRI, not X-ray — stress reactions are invisible on plain film) and a structured rest-and-return protocol. Running through it risks a full stress fracture, which is a much more serious injury requiring weeks off. If the pain doesn’t fit a clear soft-tissue pattern, this needs to be ruled out.
How to tell them apart
Location is the starting point. Outer hip: IT band or bursitis/tendinopathy. Front of hip and groin: hip flexor or stress reaction. Deep groin at rest: red flag for bone stress. Timing matters too — IT band pain has that characteristic build-up and cutoff during a run; tendinopathy is often worse after a run and the next morning; bursitis is often worst at night and with compression positions.
A proper assessment — watching you move, load testing specific structures, checking hip strength — can usually identify the driver clearly and point treatment in the right direction.
The bottom line
Hip pain in runners isn’t one diagnosis. The location, timing, and behaviour of the pain point to different structures with different treatment needs — and confusing them leads to treatment that doesn’t work. Most running-related hip problems share a common thread: hip strength and load management. But what that loading program looks like, and what to avoid while you’re doing it, depends on which structure is involved.