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Carpal Tunnel Syndrome: Causes, Symptoms & Prevention

Advice
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What is Carpal Tunnel Syndrome?

Carpal Tunnel Syndrome (CTS) is a common condition caused by pressure on the median nerve as it passes through a narrow passage in the wrist called the Carpal Tunnel. It can lead to tingling, numbness and weakness in the hand and fingers, but early treatment and prevention often restore full function.

In this article:

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Think about what your hands do every day: type, grip, lift, guide, care, create. Across every kind of workplace, from offices and hospitals to workshops and construction sites, those same hands are under pressure. It is no surprise that Carpal Tunnel Syndrome (CTS) has become one of the most common work-related conditions in the UK.

CTS develops when the median nerve in the wrist becomes compressed inside the narrow carpal tunnel, causing pain, tingling or numbness that can make even simple tasks difficult.

The good news is that with early intervention and a few simple ergonomic adjustments, you can protect your hands and keep doing what you do best.

What Is Carpal Tunnel Syndrome?

Inside your wrist lies a narrow passage called the Carpal Tunnel, made up of small bones and a strong ligament. Through this space runs the median nerve, which gives movement and sensation to much of the hand.

When the tissues surrounding that nerve swell or thicken, they reduce the space inside the tunnel and increase pressure on the nerve. Over time, this pressure can lead to nerve entrapment, causing symptoms such as tingling, numbness or weakness.

In most cases, the condition develops gradually. It can begin with mild discomfort after long periods of gripping, typing or handling tools, then progress to lasting pain that affects sleep or fine motor tasks.

Understanding the structure of the wrist helps explain why prevention is so effective. Even small improvements in posture, movement and workstation setup can reduce strain on the nerve and keep your hands healthy.

carpal tunnel syndrome median nerve

Capal Tunnel Symptoms

Carpal Tunnel Syndrome often begins subtly, which is why it is easy to overlook in its early stages. The symptoms are not always constant; they may appear after specific activities or at certain times of day. Paying attention to these patterns can help you recognise the problem before it becomes more serious.

You may notice that:

carpal tunnel syndrome numbness tingling

Numbness or tingling, particularly when typing, gripping or using tools. Or pain spreading from wrist to shoulder.

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Loss of strength when holding objects, opening jars or buttoning clothes.

carpal tunnel syndrome discomfort

Discomfort increases at night or first thing in the morning.

carpal tunnel syndrome symptoms ease

Symptoms ease when you shake or stretch your hands, only to return after another period of work.

Over time, these intermittent sensations can become persistent, affecting focus, dexterity and sleep quality. If this happens, it is important to seek medical advice (speak to your GP) and review your workstation setup. Early ergonomic changes can relieve pressure on the nerve and prevent long-term damage.

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How Common is Carpal Tunnel Syndrome?

CTS is one of the most frequently diagnosed nerve conditions in the UK, affecting people in all types of work.

  1. It affects between 7 and 16 percent of the UK population.
  2. Around one in twenty people will develop CTS at some point in their lives.
  3. It is the most common form of nerve entrapment worldwide.
  4. The condition peaks in adults in their late fifties.
  5. It is three times more common in women than in men, and the likelihood increases with age.

These statistics highlight how widespread the condition is, but they also serve as a reminder that prevention and early intervention are both achievable and effective.

Who does Carpal Tunnel Syndrome affect?

CTS does not affect one profession alone. It is seen in:

Office and remote workers

Office and remote workers who use laptops and mice for long hours.

Manual workers

Manual workers such as labourers, cleaners, hairdressers, and assembly line staff.

Tradespeople

Tradespeople using vibrating tools like drills or jackhammers.

Musicians and artists

Musicians and artists performing repetitive wrist and finger movements.

In short, anyone who spends long periods performing repetitive tasks or holding awkward wrist positions is at risk.
And in today’s world of portable technology, laptop users are particularly vulnerable.

Understanding the Risk Factors

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Genetics

Research suggests that CTS can, in some cases, be hereditary. This is linked to abnormalities in the genes responsible for distributing myelin, the protective layer that insulates nerve fibres. When this distribution is irregular, nerve signals become less efficient, increasing sensitivity to pressure and heightening pain and numbness.

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Hand and Wrist Positioning

Activities that involve extreme flexion or extension of the wrist for extended periods can significantly increase pressure on the median nerve. It is common to see office workers using gel wrist supports, often in the belief that a softer surface will help alleviate CTS symptoms. However, this approach alone doesn’t address the underlying issue of poor wrist positioning. In many cases, it is more effective to correct the wrist posture rather than adding padding to a position that’s already problematic.

This is particularly important with mouse mats that have integrated gel wrist supports. These can inadvertently encourage sustained wrist extension or contact pressure if they’re not used alongside correct ergonomic alignment and input technique.

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Medical and Health Conditions

Certain health conditions are associated with a higher risk of CTS, including rheumatoid arthritis, thyroid imbalance, obesity and diabetes.

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Repetitive Hand and Wrist Movements

Performing the same movement repeatedly without adequate rest can irritate the tendons in the wrist. This irritation causes swelling that adds pressure to the median nerve, triggering CTS symptoms.

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Trauma

Injury to the wrist, such as a sprain, dislocation or fracture, can cause swelling or structural changes that reduce the space in the carpal tunnel and increase the risk of nerve compression.

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Pregnancy

CTS is surprisingly common in pregnancy, affecting up to 50 percent of women. While the exact cause is still being studied, hormone-related fluid retention is believed to play a key role. Just as swelling in the ankles is common during pregnancy, fluid can also accumulate in the wrists, increasing pressure on the median nerve.

Stretch and Move: Daily Habits That Help Everyone

No matter what kind of work you do — typing, lifting, cutting, cleaning or playing an instrument — movement is one of the simplest and most effective ways to protect your hands and wrists. Regular stretching improves circulation, reduces stiffness and helps the median nerve glide more freely through the carpal tunnel.

Below are simple exercises recommended by orthopaedic specialists. They take only a few minutes and can be done almost anywhere.

wrist extension stretch

Wrist Extension Stretch

  • Straighten your arm with your palm facing forward, as if signalling “stop.”
  • Use your other hand to gently pull the fingers back until you feel a stretch on the inside of your forearm.
  • Hold for 15 seconds, repeat 5 times on each arm.
Wrist Flexion Stretch

Wrist Flexion Stretch

  • Straighten your arm with your palm facing down and bend your wrist so your fingers point towards the floor.
  • Gently pull your hand towards your body until you feel a stretch on the top of your forearm.
  • Hold for 15 seconds, repeat 5 times on each arm.
Median Nerve Glide

Median Nerve Glide

  • Make a loose fist with your thumb outside your fingers.
  • Slowly open your hand, extending your fingers and thumb while keeping the wrist straight.
  • Turn the palm upwards and gently stretch the thumb back with your opposite hand.
  • Hold each position for a 3-7 seconds and repeat 10–15 times a day.
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Tendon Glide

  • With your hand in front of you and your wrist straight, straighten your fingers.
  • Curl them into a hook position, then make a fist.
  • Hold each position for three seconds and repeat 5–10 times, two to three times a day.

Stretch gently and stop if you feel pain. Even short movement breaks — shaking out your hands, rolling your shoulders, or standing up to change position — can reduce the strain that leads to Carpal Tunnel Syndrome.

Your Hands Deserve Better

Carpal Tunnel Syndrome isn’t inevitable. Whether you spend your days at a keyboard, on a building site, or working with your hands in any other way, the choices you make about how you work matter.

Small changes add up: a few stretches between tasks, a properly positioned keyboard, a chair that supports neutral wrist posture. These aren’t luxuries—they’re practical steps that protect the nerves and muscles you rely on every day.

If you’re already experiencing symptoms, don’t wait for them to worsen. Early intervention makes all the difference. Speak to your GP, review your workspace, and give your hands the movement and rest they need.

Your hands are your livelihood. Make sure your hands can keep doing it.

If you are unsure what you require, get advice from one of our assessment experts.

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