The Back Pain That Was a Medical Emergency: One Patient's Story - ESP Physio
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Written By: Lewis Mitchell
Date Published: July 27, 2026

Most back pain we see in clinic gets better on its own, and with graded rehabilitation. But every so often, back pain is a warning sign of something far more serious, and recognising the difference can be the line between a full recovery and permanent, life-changing nerve damage.

This is the story of one of our recent patients, shared with her permission, who attended for an assessment with our physiotherapist Cairn Wallace in our Edinburgh physio clinic. It’s a reminder of why a thorough assessment matters, and why certain symptoms should never be ignored.

She first came to us after a visit to A&E with severe lower back pain and a loss of sensation running down her leg. The pain had come on after a bodyweight squat with a twist whilst standing up after a yoga pose, during which she felt a distinct “pop.” At A&E she was assessed, diagnosed with mechanical lower back pain/referred leg pain, was given some pain relief, and sent home.

But her symptoms didn’t settle and instead they got worse. By the time she reached our clinic for her physiotherapy assessment, she was really struggling to move. More worryingly, she’d noticed she was becoming clumsy and tripping over her own foot, something that had never happened to her before.

A back complaint is never just a back complaint until it’s been properly screened. As part of her assessment, we carried out a full lower-limb neurological examination this included testing sensation, power, and reflexes down the leg.

The findings were significant:

    • Reduced sensation down the lower, outer part of her leg

    • Reduced power in her ankle

    • A clear, visible foot drop (the “tripping” she’d described was her foot no longer clearing the ground properly)

Progressive weakness and sensory loss like this can point to a nerve being compressed, and one particular emergency was high on our list: cauda equina syndrome.

We advised her to contact her GP immediately about the foot drop and to get to A&E as quickly as possible.

Back at hospital, she was sent for an emergency MRI scan. It confirmed the worst-case scenario: three herniated lumbar discs, one of which was compressing the cauda equina (the bundle of nerves at the base of the spine that controls the legs, bladder, bowel, and sensation in the saddle area).

She was fasted and taken straight into emergency surgery for a lumbar decompression to relieve the pressure on the nerves.

Thankfully, she is now doing better, and recovering at home – “About 60% of my strength returned after the surgery, and he thinks my prognosis will be good, and I will likely be able to make a full recovery since it was caught within a week.”

Cauda equina syndrome (CES) is a rare but genuine surgical emergency. It happens when the nerves at the bottom of the spinal canal become compressed, often by a large disc herniation. Left untreated, it can cause permanent damage: loss of bladder and bowel control, sexual dysfunction, and lasting weakness or numbness in the legs.

The critical point is time. The sooner the pressure is relieved, the better the chance of a full recovery. That’s why fast recognition and rapid referral matter so much.

Most back pain is not an emergency. But you should seek urgent medical help if back or leg pain comes with any of the following:

    • Numbness or tingling around the saddle area — the inner thighs, genitals, or back passage

    • Difficulty passing urine, loss of bladder or bowel control, or not being able to feel when you need to go

    • Numbness, weakness, or pins and needles in both legs

    • Foot drop or new clumsiness / tripping over your own foot

    • Reduced sensation during sex or a change in sexual function

If you experience any of these, don’t wait, go to A&E and mention you’re worried about cauda equina syndrome.

Symptoms can evolve. What looks like ordinary mechanical back pain one day can develop into something urgent the next! This is exactly why a careful, hands-on neurological assessment is so important, and why any new red flag deserves a fresh look.

For this patient, spotting the foot drop and progressive weakness meant the difference between a routine recovery and permanent nerve damage. She listened to her body, sought help when things didn’t feel right, and is now on the road to a full recovery.

If you’re living with back pain that isn’t improving, or you notice any of the warning signs above please don’t ignore it. Get assessed. It could be the most important decision you make.


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