Why hip pain wakes women on both sides, and why a new mattress never fixes it

Pillow between the knees. One under the hip. Another behind the back. And still awake at three.

By the time women get to me they have usually bought the mattress. Or the topper, or the wedge, or the knee pillow that somebody swore by. Some of them can tell me more about foam density than I will ever need to know.

And then they say the thing that makes them think they are going mad.

The good side hurts now too.

So there is nowhere left to lie, and the obvious conclusion is that both hips are going, and that this is simply what a body does after fifty.

It is not two hips. It is one tendon being loaded two completely different ways, and once somebody shows you how that works, the nights stop being a mystery and start being a rule you can actually do something about.

Nobody explained it to them. Here is the whole thing.

Put your thumb on the outside of your hip and press until you find the bony point. That is the top of your thigh bone.

Two muscles from your backside attach to that point by way of tendons. Not the big one you sit on. The two hiding underneath it.

Those tendons have one job. When you stand on one leg, they hold your pelvis level so the other side does not drop. Which sounds like nothing, until you count how often you do it. Every step is a moment of standing on one leg. Every stair. Every time you get out of a car.

Now here is the part that changes everything, and almost nobody gets told it.

Most women with this are given a name for it that ends in itis. That means inflammation. It is a leftover from forty years ago, it is wrong, and it sends people in exactly the wrong direction.

A healthy tendon is fibres packed tight and running the same way, like the strands of a rope laid properly. Under too much load, or a sudden jump in load, or years of steady load in a body that repairs a little slower than it used to, those fibres thin out and lose their order where they meet the bone.

Nothing tore. Nothing snapped.

The rope just holds less than it used to.

That one sentence explains almost everything that has happened, including the parts women blame themselves for.

This is the most important thing on this page, and it is where nearly everyone goes wrong.

You can squash that tendon, or you can work it.

Squashing is when it gets pressed sideways into the bone underneath it. That happens whenever your thigh moves in toward the middle of your body. Crossing your legs does it. Standing with your weight dropped into one hip does it. Lying on that side presses it straight into the bone. So does a stretch that pulls your knee across your body. And so do some positions and not others, which is the part nobody says out loud in a clinic room.

Working is different. That is the tendon pulling along its own length while the muscle does its job. That is what it is for, and in the right amount it is the only thing that makes it stronger.

Squashing irritates it and builds nothing. Working is the only thing that adds capacity back.

And because both of them feel like using your hip, almost nobody separates them. So women end up avoiding all of it, which removes the working and leaves the squashing exactly where it was.

It also explains why the pain is not random. Stairs hurt because a stair is standing on one leg. Getting out of a car is the same. So is the last twenty minutes at a kitchen counter, when you are tired and you have quietly started leaning into one hip.

Everybody with this has a drawer, or a cupboard, or a corner of a bedroom. Here is what is usually in it, and what each one is actually doing.

Now look at that list as one thing instead of six.

Every item on it either calms the tendon or does nothing at all. Not one of them makes it hold more than it did.

That is why the relief always runs out. The same half of the treatment, over and over, from different shops, at different prices.

It was never bad luck and it was never gullibility. It was a category that only does one job.

This is the one people find hardest to hear, so I would rather you heard it from someone who does this for a living.

Resting it made it weaker.

Think about an arm coming out of a plaster cast after six weeks. It is visibly thinner than the other one. Nobody is surprised by that and nobody thinks the arm is damaged. It just stopped being asked to do anything.

Tendon is living tissue and it behaves the same way. It holds what you ask it to hold. Ask it for less and it gives you less.

And here is where the last section pays off. Resting does not protect you from squashing. You can sit still all day with your legs crossed and squash it the whole time. What resting removes is the working, which was the only half building anything.

So every careful week counted against you. Not because sitting down is wrong, but because the tendon was getting less of the one thing it needed and just as much of the thing it did not.

Then something completely ordinary hurts more than it did last year, and it feels like the whole thing is getting worse.

It is not getting worse. It is getting weaker. Those are two different problems, and only one of them can be undone.

There is a piece of this that is not the light and not the exercises. It gets skipped every time, and it probably costs more than either.

It is what you do with that hip on an ordinary Tuesday. Which chair you sit in. Whether you cross your legs at a desk. How you stand while the kettle boils. Which side you sleep on and what is between your knees when you do. Which positions squash it and which ones do not.

I see someone for one hour a week. They have the other hundred and sixty seven on their own, and that is where the progress quietly comes undone.

And the honest version of why is not that clinics do not know this. Every physiotherapist will tell you to watch how you sit and how you sleep. We say it. We say it at the end of the appointment, in about ninety seconds, while you are putting your coat on.

What almost nobody hands you is the detailed version. The one that covers your Tuesday, and the morning it is already sore, and the specific position you have slept in for thirty years. That takes twenty minutes to do properly, and I have twelve for the whole appointment.

So you get the headline and never the instructions.

One thing does, and I am sorry to tell you it is the boring one.

You load it. Carefully, in an amount somebody tells you, most days, and you increase it as it adapts.

Tendon cells respond to being worked. Give them the right amount and they lay down new collagen along the lines of force. The rope gets denser and better organised and starts holding again.

That takes weeks, not days. Which is where most people stop, usually about a fortnight before anything would have shown up.

And the evidence for this is not thin.

In 2018 the BMJ published a trial of 204 people with this exact condition. It put a guided programme against a cortisone injection, and against waiting to see. At eight weeks the guided group was doing substantially better than either. At a year they were still ahead on how they rated their own condition, although pain intensity scores were similar across the groups by then.

Now look at what that winning group was actually called.

Education plus exercise.

Not exercise. The explaining was in there from the start. It is half the name of the thing that beat a steroid injection, and it is the half that disappears the moment a programme becomes a photocopied sheet.

There is one more number in there worth sitting with.

Fourteen sessions in eight weeks. That is what the research used. Almost nobody gets that. Cover runs out, appointments get spread thinner, and people end up doing a fraction of the dose the evidence was built on, then concluding it did not work for them.

There is one thing I have found that does all three in the same box, which is the only reason it is on this page. It is called the ARESS Springline System.

I will not tell you what your hip will do. What I can tell you is the order, because with the nights it is unusually predictable.

The sleeping almost always improves first, and faster than anything else. That is not the tendon being fixed. It is positioning removing the squashing for seven or eight hours a night, which is the quickest win available to anyone with this.

What women describe is not waking up cured. It is rolling over at three and not being woken by it, and not being able to say afterwards which night that started.

Then the daytime follows, slowly. Stairs. Getting off the edge of the bed without a run up. Standing long enough to cook.

That part only comes from the loading, which is why positioning on its own gives women a good month and then stalls.

One last thing about the nights, because it is what most women came here for.

Sleeping positions manage the squashing for the seven or eight hours you are in bed. That is worth doing and it usually helps quite quickly, which is why the nights are often the first thing to improve.

But positioning does not rebuild anything. It buys the tendon a quiet night. The loading is what makes it hold again, and the reason women notice the nights first is not that the tendon is fixed. It is that it is finally being left alone long enough to respond to the work.

Nobody wakes up one morning and announces it. You just notice, some week, that you rolled over and it did not wake you, and that you cannot remember which night that started.