Carpal tunnel syndrome

Symptoms

The symptoms of carpal tunnel syndrome include:

• an ache or pain in your fingers, hand or arm
• numb hands
• tingling or pins and needles
• a weak thumb or difficulty gripping

These symptoms often start slowly and come and go. They're usually worse at night.

Causes

Carpal tunnel syndrome (CTS) happens when the carpal tunnel inside your wrist swells and squeezes 1 of your nerves (median nerve).

You're more at risk of CTS if you:

• are overweight
• are pregnant
• do work or hobbies that mean you repeatedly bend your wrist or grip hard, such as using vibrating tools
• have certain other conditions, such as arthritis or diabetes
• have a parent, brother or sister with CTS
• have previously injured your wrist

Diagnosis

A GP can usually diagnose carpal tunnel syndrome (CTS) by asking about your symptoms and checking your hand.

If they're not sure it's CTS, they may refer you to hospital for:

• a test of the nerves in your wrist (nerve conduction test)
• scans such as an ultrasound scan or MRI scan

Treatment Options

Carpal tunnel syndrome (CTS) sometimes gets better by itself in a few months, particularly if you have it because you're pregnant.

Wear a wrist splint

A wrist splint is something you wear on your hand to keep your wrist straight. It helps to relieve pressure on the nerve.

You wear it at night while you sleep. You may need to wear a splint for up to 6 weeks before it starts to feel better.

You can buy wrist splints online or from pharmacies.

Stop or cut down on things that may be causing it

Stop or cut down on anything that causes you to frequently bend your wrist or grip hard, such as using vibrating tools for work or playing an instrument.

Painkillers

Painkillers like paracetamol or ibuprofen may help carpal tunnel pain short-term.

But there's little evidence to say they can treat the cause of CTS, so it's important not to rely on them.

Hand exercises

There's a small amount of evidence to suggest hand exercises help ease the symptoms of CTS.

Treatment for carpal tunnel syndrome (CTS) from a GP

If you have carpal tunnel syndrome (CTS) and a wrist splint does not help, the GP might recommend a steroid injection into your wrist. This brings down swelling around the nerve, easing the symptoms of CTS.

Steroid injections are not always a cure. CTS can come back after a few months and you may need another injection.

When To See A Doctor

See a GP if:

• your carpal tunnel syndrome symptoms are getting worse or are not going away
• treatment at home for carpal tunnel syndrome is not working