The carpal tunnel is a narrow channel in the wrist through which a major nerve and several tendons pass. When the tunnel narrows or the tissues swell, the nerve gets squeezed, leading to numbness, tingling, weakness, or pain in the hand and fingers, a condition known as carpal tunnel syndrome.
What is carpal tunnel?
The carpal tunnel is a small passageway on the palm side of your wrist, bordered by wrist bones on one side and a tough band of ligament on the other. Running through this tight space are the tendons that bend your fingers and the median nerve, which carries sensation to your thumb and most of your fingers. The tunnel does its job quietly until something crowds it.
When the tissues inside the tunnel swell, or the space narrows, the median nerve gets compressed. This produces the familiar symptoms of carpal tunnel syndrome: numbness, tingling, burning, or pain in the hand, often worse at night or when holding a phone or steering wheel. Over time, grip strength can weaken. Many things contribute, including repetitive hand use, fluid retention, and hormonal changes, which is part of why carpal tunnel syndrome is notably more common in women, especially during pregnancy and around menopause.
Diagnosing it usually starts with a description of symptoms and a physical exam, sometimes supported by imaging such as ultrasound or by nerve conduction studies that measure how well the median nerve is working. Many people find relief through wrist splints, activity adjustments, or treatments that reduce swelling, while more persistent cases may be evaluated for other options. A health professional can help identify what is driving the pressure in your particular case.
Why it matters
Carpal tunnel syndrome affects women more often than men, and it tends to show up during hormonally active times such as pregnancy and the years around menopause. Knowing that hand numbness and tingling have a recognizable, treatable cause can be reassuring, and it encourages you to address symptoms before they begin to interfere with everyday tasks.
Recognizing the pattern early also matters because lingering nerve compression can lead to lasting weakness if left unaddressed. Understanding what the carpal tunnel is, and why women are more prone to problems there, helps you connect what you are feeling to its source and explore comfort and relief sooner rather than later.
Related terms
Related articles
Medical disclaimer