Greater Trochanteric Pain Syndrome: Why "Hip Bursitis" Is the Wrong Diagnosis

Imagine waking up in the middle of the night with a sharp pain on the outside of your hip, made worse by lying on that side. The pain persists as you start your day, particularly when walking uphill or after sitting for too long. You've been to see a doctor, and the diagnosis is "hip bursitis." A corticosteroid injection provided temporary relief, but the pain returned after six weeks. This scenario is common, especially among active adults, runners, cyclists, and women over 40. The truth is that true isolated bursitis is rare. The vast majority of lateral hip pain is gluteus medius and minimus tendinopathy plus mechanical compression from a tight iliotibial band and an adducted hip posture.

What Greater Trochanteric Pain Syndrome Actually Is

Greater trochanteric pain syndrome, or GTPS, is the modern umbrella term that replaced the older label of "trochanteric bursitis." The name change matters because it reflects what sports medicine has learned over the last fifteen years. The bursa is usually not the primary driver of lateral hip pain. The actual pain generator is most often the gluteus medius and gluteus minimus tendons where they insert on the greater trochanter, combined with compressive load from the iliotibial band pressing those tendons against the bone. The bursa may be secondarily involved, but treating it as the primary lesion has produced decades of temporary fixes and recurrent pain.

Why "It's Just Bursitis" Is Almost Always Wrong

The trochanteric bursa is a small fluid-filled sac that reduces friction between the gluteal tendons and the greater trochanter. It can become inflamed, but it is rarely the primary cause of lateral hip pain in otherwise healthy active adults. In most cases, the pain is driven by the gluteal tendons themselves, which are subjected to compressive loading through a tight iliotibial band and an adducted hip posture. That compression happens constantly in daily life: standing with your weight shifted onto one hip, crossing your legs, or sleeping with your top leg adducted. Every one of those positions crushes the gluteal tendon against the greater trochanter. The pain you feel is the tendon telling you the load is too much.

The Real Driver: Gluteal Tendinopathy and Hip Mechanics

Gluteal tendinopathy is a condition characterized by degeneration and disorganization of the gluteus medius and minimus tendons under chronic compressive and tensile load. It's not an acute inflammatory problem. It's a tendon adaptation problem. The tendon has been loaded in a way it can't handle, usually for months or years before the pain started, and now its internal structure has degraded. The iliotibial band contributes by compressing the tendon from the outside, and the pelvis and hip posture drive how much compression that band delivers with every step.

Why Corticosteroid Injections Make It Worse Over Time

Corticosteroid injections can provide short-term relief by reducing local inflammation, but they have a real downside for tendinopathy. Corticosteroid exposure weakens tendon structure and interferes with the collagen synthesis the tendon needs to heal. Current sports medicine literature has been pulling away from cortisone for tendinopathy for exactly this reason: short-term symptom relief at the cost of long-term tendon integrity. If you've had multiple injections into the lateral hip over the last few years and the pain keeps coming back faster each time, this is what's happening underneath. The injections aren't fixing the problem, and they may be making the tendon less capable of healing when you eventually do load it properly.

What Actually Works: Tendon Loading Plus Mechanical Correction

The approach that resolves GTPS has two pieces that have to happen together. The first is a mechanical assessment: how much pelvic drop shows up on single-leg stance, whether the hip abductors are firing in sequence, and what's happening at the SI joint and lumbar spine that's driving the abnormal hip mechanics. The second is progressive tendon loading. Heavy slow resistance loading has the best evidence for resolving tendinopathy, because it restores the tendon's structural integrity under the kind of demand it's meant to handle. Alongside that, we cut the compressive loads: no more sleeping with the top leg dumped across the body, no more standing with weight dumped onto the affected hip, no more crossed legs for hours at the desk. Fix the mechanics upstream, load the tendon correctly, and unload it the rest of the time. That's what actually works.

Where PRP Fits for Stubborn Gluteal Tendinopathy

For stubborn gluteal tendinopathy that hasn't responded to three to six months of proper loading and mechanical correction, platelet-rich plasma can be a useful next step. PRP concentrates your own platelets and injects them into the affected tendon to stimulate a regenerative response. Unlike cortisone, which weakens the tendon, PRP targets the biology of tendon healing. It's not the first step, and it's not a replacement for mechanical correction. If the hip mechanics and compressive load haven't been addressed, PRP will not hold. But for the right patient who has done the work and still has a stubborn degenerative tendon, it can be the piece that finally moves the needle.