"Hip pain" covers several genuinely different problems, and the location is the first clue.
- Groin and front of hip — most often the hip joint itself. Hip osteoarthritis, or in younger and more active people, femoroacetabular impingement or a labral problem.
- Outside of the hip, over the bony point — usually not the joint. This is most commonly gluteal tendinopathy, historically mislabelled "trochanteric bursitis". It is tender to lie on, sore on stairs and on standing from a chair, and it responds to progressive loading rather than to rest.
- Buttock, sometimes travelling down the leg — frequently referred from the lower back rather than arising in the hip at all. Which is why a hip assessment that never examines your back is an incomplete one.
Getting this right changes the treatment entirely, and it is the single most common thing that has been missed by the time someone arrives having already tried something that did not work.