Trochanteric bursitis is the traditional name for pain over the bony prominence on the outer hip, where a bursa cushions the gluteal tendons as they wrap the greater trochanter. Modern imaging has refined the story: in many patients the deeper problem is gluteal tendinopathy - irritated hip-stabilizing tendons - with the bursa inflamed as a bystander. The distinction matters because tendons respond to graded loading, not just rest.
The pattern is distinctive: pain lying on the affected side at night, pain on stairs and single-leg tasks, and tenderness you can point to with one finger on the outer hip bone. It is most common in women in mid-life, and everyday compression positions feed it - sitting with legs crossed, standing with the hip slung sideways, sleeping without a pillow between the knees.
Importantly, this is not hip-joint arthritis: joint disease hurts in the groin, stiffens rotation, and behaves differently on examination - which is why the first job is deciding which hip problem you have.

