Pinched Nerve: What Causes It and How Do You Know You Have One?
A pinched nerve happens when the tissue around a nerve, such as bone, disc or swollen muscle, presses on it. This causes pain, tingling or numbness that can spread along the path of the nerve. The symptoms often appear away from the actual point of pressure. This is why whole-body standing imaging can help find where the pressure really starts.
Key points
- A pinched nerve is caused by pressure from bone, disc, ligament or muscle tissue.
- Pain, tingling or weakness often show up away from where the nerve is actually compressed.
- Standard scans taken lying down can miss alignment problems that only appear when you are standing and bearing your own weight.
- EOS whole-body imaging captures your skeleton upright. It shows how one area may be putting pressure on a nerve somewhere else.
- If you have sudden weakness, loss of bladder or bowel control, or severe numbness, get urgent medical help first.
Most people describe a pinched nerve as a sharp, burning or shooting feeling. It might run down your arm, through your hip or along your leg. You may also feel numbness, pins and needles, or a dull ache that does not ease with rest.
The tricky part is that pain from a pinched nerve often shows up far from the spot where the nerve is being squeezed. A nerve compressed at the base of your spine can cause pain in your foot. A nerve pinched in your neck can send tingling down to your fingertips. This is why imaging just one area sometimes misses the real source of the problem.
What are the symptoms of a pinched nerve?
The main symptoms are pain, tingling, numbness or muscle weakness in the area the affected nerve supplies. They can appear suddenly or build up over weeks.
Often described as a shooting feeling that travels along the path of the nerve, such as down the arm or leg.
A prickling feeling in the hands, fingers, feet or toes that may come and go.
Less feeling in a specific area. You may notice you cannot feel changes in temperature or a light touch.
Difficulty gripping, lifting or walking normally because the nerve is not sending signals properly.
When to get urgent help. If you develop sudden weakness in an arm or leg, loss of bladder or bowel control, or numbness in both legs that is getting worse quickly, contact your doctor or go to the emergency department of your nearest hospital. These symptoms need immediate medical attention and are not suitable for a routine scan booking.
What causes a pinched nerve?
A pinched nerve is caused by pressure from the structures around it. This pressure can come from several sources, and more than one may play a part at the same time.
A spinal disc pushes outward and presses against a nearby nerve root.
Extra bone growth from wear and tear narrows the space a nerve passes through.
Inflamed or overworked muscles can swell and squeeze a nerve in a tight space.
An uneven pelvis or a shifted spine changes the load on joints and nerves over time.
How is a pinched nerve different from a muscle strain?
A muscle strain tends to cause an ache in one spot. It gets worse when you use the affected muscle and better with rest. A pinched nerve, on the other hand, often sends pain, tingling or numbness along the path of the nerve, sometimes far from where it is compressed. Muscle strains rarely cause numbness or weakness. If you are not sure which one you have, the pattern of your symptoms is a good clue, but imaging can help confirm the answer.
Why does standing imaging matter for a pinched nerve?
Standing imaging matters because the alignment of your skeleton changes when you are upright and carrying your own weight. Lying on a scanner table relaxes the muscles. It lets the spine and pelvis settle into a neutral position. This can hide the very shift in alignment that is pressing on a nerve when you stand and walk.
Your body works as a connected chain from your feet to your head. A slight tilt in the pelvis can change how load passes through the lumbar spine, which may narrow the space around a nerve root. A shifted curve in the middle of the back can push extra stress up into the neck. Pain often shows up away from its real cause because of this chain of compensation.
EOS imaging captures your entire skeleton in a single standing scan, from head to ankles, using about 90% less radiation than a standard X-ray, around ten times less. This full-length view lets a specialist see whether something in your alignment, such as a pelvic tilt, a shifted knee axis or a flattened spinal curve, is creating the conditions for nerve compression.
Wondering whether your pinched nerve could be linked to an alignment problem? A free video consultation, which you can join from home, can help you decide if travelling to London for whole-body imaging is the right next step.
Book a free video consultationHow long does a pinched nerve last and what helps?
Many pinched nerves get better within a few weeks with simple changes, such as rest, gentle movement and avoiding the posture or activity that makes the symptoms worse. Some take longer. This is more likely if the underlying cause is a structural problem, like a disc bulge or a joint that has shifted position over time.
General approaches that may support recovery include:
- Taking short breaks from sitting or standing in one position for a long time.
- Gentle stretching and movement guided by a physiotherapist.
- Adjusting your desk set-up or sleeping position to reduce pressure on the affected area.
- Pain relief bought from a pharmacy without a prescription, used as directed by a pharmacist or doctor.
When symptoms persist or keep coming back, it is worth asking whether the root cause has been properly identified. If a problem in your alignment is putting ongoing pressure on a nerve, treating the symptoms alone may not be enough. Clear imaging of your whole skeleton, taken while you are standing, can give your treating clinician the information they need to plan the right approach.
Before you start a treatment, or change the one you are on, it is worth getting a detailed diagnosis. Knowing whether the cause sits in your pelvis, your legs or your spine changes what will actually help.
When is MRI more suitable? EOS shows bones, joints and alignment very well. For soft tissue detail, such as discs, nerves or the spinal cord itself, MRI is usually the better tool. In many cases, your clinician may want both: EOS for the overall picture of how your body carries load when standing, and MRI for a closer look at the soft tissue around the compressed nerve.
Frequently asked questions about pinched nerves
Most people describe sharp, burning or shooting pain that travels along the path of the nerve. You may also feel tingling, pins and needles, numbness or muscle weakness in the area the nerve supplies.
Yes. This is called referred pain. A nerve pinched in the lower back can cause pain in the foot. A nerve compressed in the neck can send symptoms down the arm to the hand.
Diagnosis usually involves a clinical examination and imaging. MRI is commonly used to look at the soft tissue around the nerve. Standing whole-body imaging, such as an EOS scan, can show alignment problems that add to the compression.
EOS is a low-dose standing X-ray that captures your full skeleton in one image. It shows alignment problems, such as a pelvic tilt or a shifted spinal curve, that may be putting pressure on a nerve. You can learn more on the EOS scan overview page.
Yes. EOS uses about 90% less radiation than a standard X-ray, around ten times less. Details on safety, preparation and what to expect are on the FAQs page.
No. ScanAlign accepts self-referrals. You can start with a free video consultation to discuss whether an EOS scan is suitable for your situation.
The price for patients travelling from abroad is confirmed during the free video consultation. You can find more on the FAQs and cost page.
Many pinched nerves get better within a few weeks with rest and gentle movement. Some take longer, especially if the underlying cause is structural. Symptoms that persist or keep coming back often benefit from imaging to find the root cause.
Yes. Poor posture kept up over time can shift the load on your spine and joints, narrowing the spaces nerves pass through. Over time, this can lead to compression. A standing scan shows exactly how your body carries its weight. Read more about spinal alignment and imaging.
Get urgent medical attention (your doctor or the emergency department of your nearest hospital) if you develop sudden weakness, loss of bladder or bowel control, or numbness that is spreading quickly. These symptoms need to be checked straight away.
Find out what is really going on
A free video consultation with our team, from wherever you are, can help you understand whether whole-body standing imaging in London is the right next step for your nerve symptoms.
Book a free video consultationSources
- NHS. "Peripheral neuropathy." nhs.uk. Available at: https://www.nhs.uk/conditions/peripheral-neuropathy/
- American Academy of Orthopaedic Surgeons. "Cervical Radiculopathy (Pinched Nerve)." OrthoInfo. Available at: https://orthoinfo.aaos.org/en/diseases--conditions/cervical-radiculopathy-pinched-nerve/
- Illés T, Somoskeöy S. "The EOS imaging system and its uses in daily orthopaedic practice." International Orthopaedics. 2012;36(7):1405-1411.
Written by Abbas Dhami (Specialist Diagnostic Radiographer)
This page is general information and not a diagnosis.
ScanAlign is the trading name of CoreMed Solutions Ltd and operates under The Harley Street Hospital's CQC licence.
