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Hip bursitis: a chair rarely presses where it hurts

Condition guide 5 min read Updated September 22, 2026

If you searched “cushion for bursitis in hip,” you are about to be shown a wall of products, and here is the fact the listings skip: for most people typing that phrase, the products cannot reach the sore spot at all. “Hip bursitis” almost always means trochanteric bursitis — irritation at the bursa over the greater trochanter, the bony knob on the side of the hip. Sitting does not press on the side of the hip, so no seat cushion — the Socket Seat included — has any mechanical business there.

The same two words occasionally describe a different bursa, the one under the sit bone, and that one genuinely is a seated-pressure location. Which of the two you have decides whether the cushion aisle deserves another minute of your attention — and telling them apart takes about that long.

Two places, one name

A bursa is a small fluid-filled sac that sits between bone and the tissue that slides over it, and the hip region has several. Two of them get called “hip bursitis”:

  • The trochanteric bursa lies over the greater trochanter. Stand up and press the widest bony point on the outer side of your hip — you are on it. When this area is irritated, the classic pattern is pain lying on that side at night, tenderness right at that outer bony point, and pain on stairs or in the first steps after a long sit.
  • The ischial bursa lies at the ischial tuberosity — the sit bone, the hard point directly under each cheek when you sit down. Its signature is blunt: pain on sitting, at the bony point under you, worse on hard seats. It has its own article — sitting with ischial bursitis — because it behaves completely differently under a chair.

When people say “bursitis in my hip,” they overwhelmingly mean the first one. Which is awkward for the cushion industry, because the two spots have opposite relationships with a seat.

Why no cushion geometry reaches the trochanter

A cushion can only change what happens where your body meets the seat: under the thighs and the base of the pelvis. The greater trochanter is not in that contact patch — it faces sideways, at roughly hip-pocket height, pointed at the armrest. A chair does not press on it, so there is no seat pressure for any cushion to remove, redistribute, or cut a hole under. The surface that does load a trochanteric bursa is a mattress, when you lie on that side — which is exactly why night pain is the classic sign, and exactly why the answer is not something you put on a chair.

So, plainly: if your pain is on the side of your hip, keep your $99.99. Sitting can still aggravate a trochanteric problem — deep couches and low chairs flex and rotate the hip, and crossed legs press the tendons and bursa against the trochanter — but that is joint position doing the irritating, not seat pressure on the spot, and a cutout changes only seat pressure. One more wrinkle: a good deal of what gets called “trochanteric bursitis” turns out to involve the gluteal tendons next door. Sorting that out takes an examination, sometimes imaging — which is to say, a doctor or a physical therapist, not a purchase. For the outer-hip pattern, that appointment is the useful next spend.

The minute of self-localization

You need a hard chair and your own thumb. None of this is a diagnosis — it is a set of observations that usually points at the structure doing the complaining.

Where the pain sits, and what it points to
Ask yourselfSide-of-hip patternUnder-you pattern
Where exactly?The widest bony point on the outer hip — findable while standingThe hard point directly under one cheek — easiest to find sitting
What sets it off?Lying on that side, stairs, the first steps after a long sitSitting itself — hard seats, and quickly
At night?Classic — lying on the painful side wakes youUsually quiet — lying down unloads the spot
Pressing on it?Tender at the outer knob while standingA hard chair reproduces it directly

One neighbor worth ruling out: a deep, one-sided ache in the middle of the cheek — not at any bony point you can pin down — usually points away from either bursa; the piriformis article carries that triage.

If it really is the sit-bone location

Then you are in the one “hip bursitis” case where seat geometry is even relevant, because the irritated structure lives precisely where bone meets chair. The mechanical claim, stated exactly: the Socket Seat’s two openings are 3.5″ wide each, 6″ center to center, sized for sit-bone widths in the designed range of 3.6″–6.7″ and body weights of 110–295 lbs. When the fit is right, the sit bones rest over open space — chair contact at those two points is removed — and the load moves to the thighs and outer seat. That is the entire claim. Where pressure lands changes; what is happening inside an irritated bursa is between you and your clinician.

The precondition is fit, and fit is checkable before you spend anything: measure your sit-bone width — a minute with a piece of corrugated cardboard — and run the number through the fit checker. It says plainly when the geometry can line up with you, and just as plainly when it cannot. The broader case for openings over padding — and why padding cannot unload exactly this spot — is laid out in cutout cushions, explained.

The short version

Pain at the side of the hip → sitting never presses there, no cushion geometry reaches it — keep your money and book the examination instead. Pain at the bony point under you when you sit → a genuine seated-pressure location; measure first, and let the fit checker rule.

The Aylio Socket Seat cushion at a three-quarter angle, showing its two contoured sit-bone openings and airflow mesh top, beside its retail box.

For the sit-bone case only — after the fit checker says yes

With a confirmed fit, the Socket Seat’s two openings remove chair contact at the sit bones — the one place a cushion can reach. $99.99, 100 days to decide, free returns.

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Gluteal tendinopathy: the same spot, the same answer

The gluteus medius and minimus tendons attach at that same greater trochanter, and “gluteal tendinopathy” is the other name a sore outer hip often gets. Everything above applies unchanged: a seat does not press on the side of the hip, so there is no contact there for a cutout, a gel pad or a memory-foam cushion to remove. What does change the load on that side of the hip is position — hips a little above the knees, legs uncrossed — which is a wedge’s job rather than a cutout’s. If the sore point is instead the bone you feel directly under you when you sit on something hard, that is a different structure, and sitting with ischial bursitis is the page for it.

This is education, not medical advice. Aylio makes ergonomic seat cushions, not medical devices. Nothing here is intended to diagnose, treat, cure or prevent any condition, and a cushion is not a treatment. If your pain is persistent, severe, or getting worse, please see a doctor or a licensed physical or occupational therapist — they can examine you, which an article cannot.

General background on the anatomy and conditions mentioned: Cleveland Clinic — Trochanteric Bursitis (opens in a new tab) · StatPearls (NIH) — Greater Trochanteric Pain Syndrome (opens in a new tab).

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