Carpal Tunnel Syndrome Info
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Video transcript
Carpal tunnel syndrome happens when the median nerve is squeezed where it passes through a tight tunnel at the front of the wrist. It causes numbness, tingling, and pins and needles in the thumb, index, and middle fingers. The symptoms are often worst at night, and can wake you, so you shake the hand to settle it. Gripping, driving, or holding a phone can bring it on through the day. Over time the hand can feel clumsy, and the muscle at the base of the thumb may weaken. Many milder cases settle with simple measures, especially when caught early. A night splint holds the wrist straight while you sleep, which often eases the night-time symptoms. Taking breaks from repetitive gripping, and easing the activities that flare it up, can help. A cortisone injection into the tunnel can give good relief, and helps confirm the diagnosis. When the numbness is constant, or the hand is weakening, an operation is usually the better path. Carpal tunnel release is a small, reliable operation that takes the pressure off the nerve. It is done as day surgery, usually with the hand numbed, through a short incision in the palm. The tight ligament that forms the roof of the tunnel is divided, giving the nerve more room. The procedure is quick, and you go home the same day, with a light dressing on the hand. Relief of the night-time tingling is often felt very soon afterwards. You can use the hand for light tasks straight away, and gentle finger movement is encouraged early. The dressing stays on for a few days, and the stitches come out at around two weeks. The palm can feel tender for a few weeks, which settles as it heals, and heavier gripping and lifting wait for around six weeks. Numbness that has been present for a long time can take longer to ease, because the nerve recovers slowly. Most people are back to light work within a week or two, with strength returning steadily.
Carpal tunnel syndrome causes hand numbness, tingling, and weakness—diagnosis and treatment options explained.
What you're feeling
You may notice numbness or tingling in your thumb, index finger, and middle finger. Pain often feels like it is traveling up your arm. Many people find these symptoms are worse at night or when they first wake up. You might feel the need to shake your hand to get the feeling back.
Daily tasks can become difficult when your hand feels weak or clumsy. Reaching behind your back to fasten a bra may feel hard. Tucking in a shirt or holding a cup of coffee might cause you to drop things. Even simple gripping actions can feel uncomfortable. If you have had nerve issues in your elbow before, you are more likely to feel these symptoms in your wrist.
Sometimes the pain is not just in your hand. You might feel it in your forearm or even your shoulder. If your symptoms started suddenly after an injury, tell your surgeon right away. While many cases are mild and can be managed without surgery, ignoring these signs can lead to lasting problems. Your surgeon will look at your specific symptoms to decide the best path forward.
What's actually happening
Your median nerve is a signal cable running through a tight tunnel in your wrist. When you bend your wrist or twist your forearm, this tunnel can get smaller and squeeze the nerve. This is especially true if you use hand-held tools, have diabetes, or carry extra weight. The pressure on the nerve causes the pain and tingling you feel in your hand.
Think of the tunnel like a sleeve that holds your tendons. If the wrist moves out of its normal position, the space inside shrinks. This compression happens most when your wrist is bent back or when your forearm twists. The nerve gets pinched, and the signals from your brain to your fingers get blocked. This is why your symptoms match exactly what doctors look for when they ask about your hand.
Sometimes, the problem involves more than just the wrist. If you also have compression in your elbow, both nerves might be affected at the same time. While surgery is safe and helps 97% of patients feel better, it may not remove all symptoms if the disease is very advanced or if you are older than 65. For many people with mild to moderate issues, non-surgical methods work well and carry fewer risks than surgery.
What we can do about it
For mild to moderate symptoms, you can start with nonsurgical methods. These include rest, activity changes, and hand therapy. Your surgeon may suggest these options first because they are effective and have fewer risks than surgery. However, a specific study found that a short two-week course of hand therapy after surgery did not provide extra benefit. If you have symptoms like pain without numbness or a pattern that does not match the typical nerve path, these might not be carpal tunnel syndrome.
If simple measures do not help, your surgeon may discuss medical options. While the evidence highlights that nonsurgical care is often underused, it notes that injections can be part of the treatment plan. Some patients with vasospasm (blood vessel narrowing) associated with the condition had excellent results with surgery, while only three in a conservative group improved. For those with diabetes or no diabetes, the benefits of release surgery are similar. If you have complex cases or atypical symptoms, your surgeon might use ultrasound to find the cause of the nerve compression before deciding on further steps.
Surgery is considered when conservative care reaches its limit or if you have severe, progressive symptoms. Carpal tunnel decompression surgery is safe and effective, with 97% of patients experiencing complete or partial relief. Even patients with end-stage disease do not have worse long-term outcomes compared to the general population after release. If you also have ulnar nerve compression at the elbow, your surgeon might treat both conditions at the same time to help you return to work sooner.
When to see someone
See your GP if you have numbness or tingling that wakes you at night or stops you from working. Ask for a specialist review if your symptoms suddenly worsen over just a few hours, or if you feel weak and your hand feels unstable. You should also seek help if you have a history of ulnar nerve issues, as this raises your risk of developing carpal tunnel syndrome within the first 2 years. If you have pain without numbness, this is not typical for this condition. Early treatment is important because the problem often gets steadily worse over time rather than getting better on its own.
