Carpal Tunnel Syndrome
Sources consulted
This article is original patient-education content.
- WHO—Health topics A–Z(2024)
- NHS—Health A to Z(2024)
- CDC—Health topics(2024)
Based on international clinical guidelines
Overview
Carpal tunnel syndrome is a common condition that causes numbness, tingling, or pain in your hand and wrist. It happens when the median nerve, which runs from your forearm into your palm, becomes squeezed or pressed at the wrist inside a narrow passage called the carpal tunnel.
Key facts
- It affects about 1 in 20 people at some point in their lives.
- Symptoms often come on gradually and may be worse at night.
- It is usually treatable with simple self-care or medical help.
Yes, carpal tunnel syndrome is very common. It is one of the most frequent nerve compression problems seen by doctors.
It can affect anyone, but it is more common in adults over 40 and in women. People who do repetitive hand movements, such as typing or assembly work, are also more likely to develop it.
Symptoms
- Sudden, severe numbness or paralysis of the hand that does not go away.
- Signs of infection if you have had a wrist injury or surgery: redness, swelling, warmth, or pus.
- ⚠Rapidly worsening numbness or weakness that makes it hard to use your hand.
- ⚠Severe pain that does not improve with rest or simple pain relief.
Common symptoms
- Numbness or tingling in your thumb, index, middle, and ring fingers – often worse at night or when you wake up.
- A feeling like your fingers are swollen even though they are not.
- Pain or burning that may travel up your arm.
- Weakness in your hand – you may drop things or have trouble gripping small objects.
Symptoms in children
- Carpal tunnel syndrome is rare in children, but when it occurs, symptoms may include clumsiness or trouble with fine motor tasks like writing or buttoning clothes.
- Children may complain of numbness or tingling in their fingers, especially after activities like cycling or using a computer for long periods.
Symptoms in older adults
- Symptoms in older adults may be more subtle and can include a loss of grip strength or a feeling of burning in the hand.
- They may notice difficulty with everyday tasks like opening jars or turning keys.
Causes
Main causes
- Anything that squeezes or irritates the median nerve inside the carpal tunnel. This can be from swelling, inflammation, or a change in the tunnel's shape.
- Repetitive hand movements – such as typing, using a mouse, or assembly work – can make it worse.
Risk factors
- Family history of carpal tunnel syndrome.
- Pregnancy – fluid changes can cause temporary symptoms.
- Medical conditions like diabetes, thyroid problems, or rheumatoid arthritis.
- Obesity.
- Fractures or injuries to the wrist.
When to see a doctor
See a doctor urgently if:
- If you have numbness or weakness that suddenly becomes very severe or spreads to your arm or face – call your local emergency number.
- If you cannot move your fingers or hand at all.
Book a routine appointment if:
- If you have tingling, numbness, or pain in your fingers that lasts more than a few weeks.
- If your symptoms are making it hard to sleep or do daily tasks.
Diagnosis
A doctor will listen to your symptoms and examine your hand and wrist. They may gently tap over the nerve or ask you to hold certain positions to see if symptoms appear.
Tests that may be done
- Nerve conduction study – a small electrical test to see how well the median nerve is working.
- Electromyography (EMG) – a test that measures the electrical activity of your muscles.
- Ultrasound – to look at the size of the nerve or check for other problems.
What to expect at your appointment
The tests are usually done in a clinic or hospital and are not painful. They help confirm the diagnosis and rule out other conditions. The results will help you and your doctor decide the best treatment plan.
Treatment
Treatment aims to reduce pressure on the median nerve and relieve symptoms. Most people get better with simple steps, but sometimes more help is needed.
Self-care at home
- Rest your hand and wrist by avoiding activities that make symptoms worse.
- Wear a wrist splint at night to keep your wrist in a neutral position.
- Apply ice or cool packs to the palm for 10 minutes at a time to reduce swelling.
- Take breaks during repetitive tasks to stretch and shake out your hands.
Medical treatments
A doctor may suggest anti-inflammatory medicines (like ibuprofen) to reduce swelling, or steroid injections into the carpal tunnel to calm the nerve. Physical therapy with exercises and stretches can also help. These treatments work well for many people.
When is surgery considered?
If symptoms are severe, do not improve with other treatments, or if you have muscle weakness or wasting, a doctor may recommend a small operation called carpal tunnel release. This cuts the ligament pressing on the nerve and often relieves symptoms right away.
Living with this condition
Carpal tunnel syndrome can make daily tasks like typing, cooking, or holding a phone harder. But with small changes – like using ergonomic tools, taking breaks, and wearing a wrist splint – most people manage well. Your symptoms may come and go, and that is normal.
Lifestyle tips
- Use hands-free devices at work when possible.
- Keep your wrist straight while using a mouse or keyboard.
- If your job involves repeated hand movements, talk to your employer about adjusting your workspace.
- Avoid sleeping with your wrist bent under your pillow.
Diet and exercise
Eating a balanced diet with anti-inflammatory foods – like fruits, vegetables, and fish – may help. Gentle hand and wrist exercises, such as opening and closing your fist or stretching your fingers, can keep the muscles flexible. Always check with a doctor before starting new exercises.
Mental health and emotional wellbeing
Living with chronic pain or numbness can be frustrating and may affect your mood. You might feel anxious about daily tasks or worry about getting worse. It is important to talk about these feelings with your doctor or a trusted friend. You are not alone – support is available.
Prevention
You cannot always prevent carpal tunnel syndrome, but you can lower your risk by taking breaks during repetitive tasks, using good posture, and keeping your wrist in a neutral position. If you have a related condition like diabetes, managing it well may help protect your nerves.
Vaccines
There are no vaccines for carpal tunnel syndrome.
Complications
If left untreated
- Permanent nerve damage that can lead to chronic numbness or weakness.
- Muscle wasting at the base of your thumb (thenar muscles).
- Loss of grip strength that makes everyday activities hard.
Long-term outlook
The outlook for carpal tunnel syndrome is generally very good. Most people improve with simple care or medical treatment. Even if surgery is needed, recovery is usually quick and full. With the right steps, you can get back to normal activities and feel better.
Find support
International organisations
- American Academy of Orthopaedic Surgeons (AAOS) – Patient Education ↗
- World Health Organization – Fact sheets on musculoskeletal conditions ↗
Local organisations
- NHS – Carpal Tunnel Syndrome ↗ · United Kingdom
Helplines
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Always verify with your doctor
Health guidelines vary by country and region. The information in this article is based on international clinical guidelines but may not reflect the specific guidelines, medications, or practices in your country. Always discuss your health concerns with your own doctor or healthcare provider, and refer to your local national health guidelines where available.
Important notice This information is for educational purposes only. It does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider about your specific situation. If you are experiencing a medical emergency, call your local emergency services immediately.