Shoulder condition
Shoulder impingement is a pinch: as you lift your arm, the rotator cuff tendons and the cushioning bursa get squeezed under the bony roof of the shoulder, and the trapped bursa inflames into bursitis. The tell is a painful arc — a band of pain partway up as you raise the arm that eases again at the top — and an ache after overhead work. It is one of the most common and most treatable shoulder problems, and it responds far better to fixing how the shoulder moves than to rest alone. This page explains what causes the pinch, why the mechanics matter more than the painkillers, and when a stubborn shoulder needs a closer look.
Tap any that apply to you — this is guidance, not a diagnosis, but it helps tell impingement from the shoulder problems it resembles.
Mostly this points to impingement — but that last one is worth flagging. True weakness lifting the arm, or a shoulder that gave way after a fall or pull, can mean the rotator cuff has torn rather than simply being pinched, and a significant tear is best assessed early. If pain — not weakness — is the main problem, that fits impingement, which is very treatable. Either way, an assessment sorts out which you have.
Good news — a painful arc with the movement still intact is the classic picture of impingement, and it settles well. The thing that resolves it is not rest but retraining how the shoulder blade and cuff work together, alongside calming the inflamed bursa. An assessment can confirm it and set that plan if you want one.
Impingement is a space problem, and bursitis is what the trapped tissue does about it — several things narrow that space:
The instinct with a pinching shoulder is either to rest it completely or to push through and keep lifting — and both tend to prolong it. The better approach is to ease the provocation and fix the mechanics: cut back the specific overhead loading that flares it for a while, keep the shoulder moving comfortably below the painful arc, and begin retraining the shoulder-blade and cuff control that opens the space back up. Complete rest lets the shoulder stiffen and does nothing about the mechanics, so the pinch returns the moment you resume. Pushing through sharp pain, meanwhile, keeps the bursa inflamed. If the arm is genuinely weak rather than simply sore — you cannot lift or hold it up — that points beyond impingement and is worth assessing promptly.
Timing changes what matters most — tap where you are:
A fresh flare is usually an irritated bursa reacting to overload. Ease the overhead activity that set it off, keep the shoulder moving below the painful arc, and let the inflammation settle over the next week or two. If it is very painful or not easing, an assessment can calm it and start the mechanics work early.
This is where the mechanics work earns its keep. A shoulder still catching after a few weeks needs more than rest — retraining how the shoulder blade and cuff move is what opens the space and settles the pinch. Starting that programme now, rather than waiting, is what resolves most impingement.
Impingement that has dragged on for months deserves a proper look. It may be a stubborn bursitis, a mechanics problem that needs targeted retraining, or a rotator cuff that has begun to fray from the repeated pinching. A scan and assessment sort out which, rather than another few months of the same.
Impingement and bursitis treatment is a ladder most people climb only the first rungs of:
Tap each card to reveal the truth:
They are two sides of the same problem, which is why they are treated together. Impingement is the mechanical part: the rotator cuff tendons and the cushioning bursa get pinched under the bony roof of the shoulder as you lift the arm. Bursitis is the consequence: that pinched bursa — a small fluid-filled cushion — becomes inflamed and painful. So impingement describes what is happening to the space, and bursitis describes the inflamed tissue caught in it. Settling the inflammation and fixing the mechanics that cause the pinch is the same job for both.
Most cases settle over weeks to a few months with the right approach, though it depends on how long it has been going on and what is driving it. A recently irritated shoulder often calms within six to twelve weeks once the aggravating overhead load is eased and the shoulder-blade mechanics are retrained. A shoulder that has been grumbling for many months, or one where the tendon has started to fray, can take longer. The key is that impingement usually improves with the right rehabilitation rather than simply with rest — and rest alone tends to let it linger.
It can settle if whatever caused the pinch eases off — a burst of unaccustomed overhead work, for example, that you then stop. But impingement that keeps being provoked, or that stems from how the shoulder blade moves, tends to persist or return until the underlying mechanics are addressed. Left unchecked, repeated pinching can gradually fray the rotator cuff tendons, so a shoulder that keeps catching and aching is better assessed and rehabilitated than waited out. The good news is that the great majority settle without surgery.
There is no overnight fix, but recovery is quickest when the pain is settled and the mechanics are corrected at the same time. Easing off the movements that provoke it, calming the inflamed bursa, and — most importantly — retraining how the shoulder blade and rotator cuff work together is what resolves impingement durably. A targeted injection into the bursa can calm a very painful shoulder enough to let that rehabilitation progress. Skipping the mechanics and relying on rest or painkillers alone is the slow route, because the pinch simply returns.
Rarely, and only after a genuine trial of rehabilitation. The great majority of impingement settles with physiotherapy and, where needed, a targeted injection. Surgery — a keyhole decompression to make a little more room under the bony roof — is reserved for shoulders that stay genuinely stuck despite months of proper treatment, or where a structural problem is clearly maintaining the pinch. Because impingement and rotator cuff tears often travel together, any surgery is planned around what the assessment finds in the tendon, not the impingement alone.
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