Trapped Nerve: How to Ease It and When Physiotherapy Helps

In short

A trapped nerve, also called a pinched nerve, happens when a nerve is squeezed or irritated by the tissues around it, most often where it leaves the spine in the neck or lower back. It can cause sharp, shooting or burning pain, pins and needles, numbness or weakness along the path of the nerve, down the arm or the leg. Most trapped nerves ease with time, gentle activity and simple home care. Physiotherapy can help if it is slow to settle or keeps coming back.

Below you will find what a trapped nerve is, what causes it and how to ease one in the neck, the "trap" at the top of the shoulder, the arm or the back. We also list the warning signs that need urgent medical help, and explain how a FlexAura physiotherapist can assess and treat a trapped nerve at home or by video call.

What is a trapped nerve?

Nerves carry messages between your brain and the rest of your body. On their way out of the spinal cord they pass through narrow gaps between the bones of the spine, then run down through the shoulder and arm, or the buttock and leg. If something narrows that space or presses on the nerve, it becomes irritated and inflamed. That is what people mean by trapped nerves or a pinched nerve. When it affects a nerve root at the spine, doctors may call it radiculopathy.

The pain is not always felt where the nerve is being pressed. A nerve trapped in the neck often causes pain around the shoulder blade, down the arm and into the hand. One trapped in the lower back can send pain into the buttock, the back of the leg and the foot, which is known as sciatica. Nerves can also be squeezed further along their path, for example at the wrist in carpal tunnel syndrome, or at the elbow.

Trapped nerve symptoms

Symptoms depend on which nerve is involved, but they tend to follow a line down the arm or leg rather than staying in one spot. Common signs include:

• sharp, shooting or burning pain, sometimes described as an electric shock
• pins and needles or tingling
• numbness in part of the arm, hand, leg or foot
• weakness, such as a weaker grip or a foot that catches as you walk
• pain that is worse in certain positions, or when you cough or sneeze

Muscle pain usually feels like a dull ache that is tender to press and stays in one area. Nerve pain tends to travel, feels sharper or hotter, and often comes with tingling or numbness. The two often overlap, because the muscles around an irritated nerve tighten up to protect it. That is one reason it helps to have it assessed if it is not settling.

What causes trapped nerves?

A trapped nerve usually has a mechanical cause: something is taking up space the nerve needs. In adults, the common causes are:

• a bulging or slipped disc pressing on a nerve root in the neck or lower back
• age-related changes in the spine, where bony growths or thickened ligaments narrow the gaps the nerves pass through
• spinal stenosis, a narrowing of the channel in the spine that carries the nerves
• an injury, such as a fall, whiplash or lifting something awkwardly
• sustained or repeated positions, such as craning towards a screen, sleeping with your neck twisted, or repetitive work with the wrists
• swelling around a nerve in a tight space, as happens at the wrist for some people during pregnancy

Sometimes there is no clear trigger. You might wake up with it, or notice it after a long drive or a weekend of decorating. Smoking and carrying extra weight are linked with more back problems, while staying active helps the spine cope with everyday loads. A trapped nerve is common, and in most cases it is not a sign of serious damage.

Trapped nerve in the neck, arm or trap

A lot of people search for a pinched nerve in the trap. The "trap" is the trapezius, the large muscle that runs from the base of your skull across the top of your shoulder and down between your shoulder blades. When a nerve is trapped in the neck, this is often where the pain is felt: along the top of the shoulder or at the inner edge of the shoulder blade. It may spread down the arm into the hand with pins and needles or numbness.

A sore trap is not always a trapped nerve, though. A stiff, aching trapezius that is tender to touch and worse after a long day at a desk is more often muscular. A useful clue is what happens further down. A trapezius pinched nerve, coming from the neck, tends to bring arm symptoms such as tingling, numbness or weakness, while muscle pain stays mainly in the neck and shoulder. A physiotherapist can test the difference properly.

How to treat a pinched nerve in the neck

Most trapped nerves in the neck settle with time and simple measures. Keep your neck moving gently within comfort rather than holding it still, and do not wear a neck collar unless a doctor has told you to. Heat or a cold pack wrapped in a towel can ease the muscle spasm around the nerve. Ask a pharmacist which painkillers suit you. At night, a low, firm pillow often helps, as does lying on your back or on the less painful side.

Some people find that resting the hand of the painful arm on top of their head eases the arm pain, because it takes tension off the nerve. If that helps you, it is a reasonable position to use for short spells. Our guide to waking up with a stiff neck has more on everyday neck care, and our page on neck pain physio at home explains what a session involves.

Trapped nerve in the arm

Pain, tingling or numbness in the arm often comes from the neck, but a nerve can also be squeezed lower down. Numbness in the thumb and first two fingers that is worse at night suggests carpal tunnel syndrome at the wrist. Tingling in the ring and little fingers, especially after the elbow has been bent for a long time, can come from the ulnar nerve at the elbow. Trapped nerve in arm treatment depends on where the nerve is being pressed, which is why an assessment matters.

Trapped nerve in the back

A trapped nerve in the lower back usually causes pain in the buttock and down the back or side of one leg, sometimes into the foot, often with tingling or numbness. The leg pain is often worse than the back pain. This pattern is called sciatica, and it is common. We cover it in detail on our page about sciatica physio at home and in our guide to how long sciatica lasts.

To ease a trapped nerve in the back, the NHS advice is to carry on with your normal activities as much as you can and avoid sitting or lying down for long periods. Moving may hurt, but it is not harmful and it helps. Heat packs on the painful area, short walks spread through the day and changing position often all help. Once the worst has passed, gentle exercises for lower back pain are a sensible next step.

How to get rid of a trapped nerve: what helps at home

There is no quick trick that releases a trapped nerve, and you cannot click or pop it free. The nerve settles as the irritation and swelling around it calm down, and that takes time. What you do in the meantime makes a difference to how comfortable you are and how well you keep moving. To relieve a trapped nerve while it settles, these are the measures physios suggest most often:

• gentle, regular movement and short walks, which help more than bed rest
• noticing which positions take the edge off, and using them for short spells
• a hot water bottle or a cold pack wrapped in a towel, whichever feels better
• asking a pharmacist about pain relief that suits you and any other medicines you take (nerve pain does not always respond to ordinary painkillers, so see a GP if it is severe)
• breaking up long spells of sitting, driving or screen work, and avoiding heavy lifting while it is sore
• a supportive pillow for the neck, or a pillow between your knees when you lie on your side

Be wary of anything that sharply increases pain down the arm or leg, including forceful stretching, deep massage over the painful area or having your neck or back "cracked". Some people do well with gentle nerve-gliding exercises, but these are best learned from a physiotherapist, because doing them too hard can stir symptoms up. If home measures are not helping after a few weeks, or the pain is stopping you doing normal things, see a GP or a physiotherapist.

UK Physio Tip: Keep a quick note on your phone of how far down the arm or leg the pain travels each day. If the tingling or pain is gradually retreating back towards your spine, physios usually see that as a good sign. If it is spreading further down, or you notice new numbness or weakness, get it checked rather than pushing on.

When a trapped nerve needs urgent help

Most trapped nerves are painful but not dangerous. A small number of symptoms do need urgent medical help, so do not wait for a physio appointment if any of these apply:

• Numbness or weakness in both legs, sciatica on both sides, numbness around your bottom or genitals (the saddle area), or new problems peeing or pooing, or controlling either: go to A&E or call 999. These can be signs of cauda equina syndrome, which needs hospital treatment straight away.
• Sudden numbness or weakness on one side of the body, a drooping face or slurred speech: call 999, as this could be a stroke.
• Pins and needles, numbness or weakness after a head or neck injury, such as a fall or a car accident: go to A&E or call 999.
• An arm or leg that turns cold, pale or blue, especially if the change is spreading: call 999 or go to A&E.
• Numbness or weakness that is getting worse, severe pain that is worsening quickly, or pain with feeling hot, shivery or generally unwell: ask for an urgent GP appointment or contact NHS 111.

This platform facilitates booking only. It does not provide medical advice. If you are not sure how urgent your symptoms are, NHS 111 can help you decide. The NHS guide to sciatica and the NHS advice on neck pain explain these warning signs and self-care in more detail.

How physiotherapy helps a trapped nerve

Your physiotherapist will start by asking where the pain goes, how it started and what makes it better or worse. They will then examine your neck or back and carry out a neurological check, testing the strength of particular muscles, your reflexes and the feeling in your skin. This shows which nerve is likely to be involved and whether you need a GP or further tests. If so, they will tell you and help you work out where to go.

How to treat a trapped nerve depends on what the assessment finds and what you want to get back to. Treatment may include:

• advice on the positions and movements that ease symptoms, and which ones to limit for now
• gentle exercises to restore movement in the neck, upper back or lower back
• nerve-gliding exercises, where they suit you
• hands-on treatment, such as joint mobilisation or soft tissue work, for comfort
• strengthening for the neck, shoulders, trunk and legs as the pain settles
• advice on your work set-up, driving, lifting and sleep

The aim is to keep you moving while the nerve settles, then build strength so it is less likely to flare up again. How long that takes varies by person. Your physio will review progress at each visit and adjust the plan. If your symptoms change, for instance if new weakness appears, they will advise you to see a GP.

Physio for a trapped nerve at home or online

A trapped nerve can make driving, sitting in a waiting room or getting in and out of a car hard work. With FlexAura, an HCPC-registered, DBS-checked physiotherapist can visit you at home anywhere in England, Scotland and Wales, or at a relative's home, in sheltered housing or in a care home. If back pain is the main problem, our page on back pain physio at home explains how those visits work.

If you would rather start with advice and an exercise plan, an online video consultation is available anywhere in the UK. An online consultation is £45. A home visit is £110 for the first visit and £99 for follow-ups, and a 5-session home package is £450. Prices are the same across the UK and include the physio's travel. You pay after the visit, there are no cancellation fees and you do not need a GP referral. See our physiotherapy prices for details.

We match a physiotherapist to every booking and confirm who is coming and when before the visit. If nobody can come, you pay nothing. If you have private health insurance, check your policy before you book. To get started, book a physiotherapist online, call 07782 610 633 or WhatsApp us.