Understanding Carpal Tunnel Syndrome: Signs You Shouldn't Ignore

Carpal tunnel syndrome (CTS) is the most common nerve compression disorder of the upper limb. It occurs when the median nerve (the nerve that provides sensation to your thumb, index finger, middle finger, and half of the ring finger) gets squeezed as it passes through the carpal tunnel, a narrow passageway of bones and ligaments at the base of the wrist.

In my practice in Gurugram, I see patients who have suffered with symptoms for months or even years before seeking help, often because they assumed the tingling would go away on its own. Early recognition is critical for preventing permanent nerve damage.

Early Warning Signs

Carpal tunnel syndrome typically develops gradually. Watch for these early symptoms:

• Numbness and tingling in the thumb, index, middle, and ring fingers, especially at night or upon waking
• Pain that radiates from the wrist up the forearm, sometimes reaching the shoulder
• Weakness in the hand — you may find yourself dropping objects or struggling to grip small items like buttons
• "Shaking out" the hands to relieve numbness, a behaviour so characteristic that doctors call it the "flick sign"
• Decreased sensation — difficulty distinguishing hot from cold with your fingertips

Who Is at Risk?

Certain factors significantly increase your risk of developing carpal tunnel syndrome:

• Repetitive hand use: People who type extensively, use vibrating tools, or perform assembly-line work are at elevated risk
• Anatomical factors: A smaller carpal tunnel (more common in women) leaves less room for the nerve
• Hormonal changes: Pregnancy, menopause, and thyroid disorders can cause fluid retention that increases pressure within the tunnel
• Diabetes: Diabetic neuropathy makes the median nerve more vulnerable to compression
• Wrist fractures: Previous fractures can alter the anatomy and narrow the carpal tunnel

How Is It Diagnosed?

Diagnosis begins with a thorough clinical examination. I use two key bedside tests: Phalen's test (holding the wrists in a flexed position for 60 seconds) and Tinel's sign (tapping over the carpal tunnel). If either reproduces your symptoms, CTS is likely.

Nerve conduction studies (NCS) and electromyography (EMG) confirm the diagnosis and grade the severity — mild, moderate, or severe. This grading guides the treatment plan.

Non-Surgical Treatment Options

In mild to moderate cases, conservative treatment can be very effective:

• Wrist splinting: A night splint keeps the wrist in a neutral position, preventing the flexion that worsens nerve compression during sleep
• Activity modification: Ergonomic adjustments to your workstation, regular breaks, and stretching exercises can reduce pressure on the nerve
• Anti-inflammatory medication: Short courses of NSAIDs or a corticosteroid injection into the carpal tunnel can provide temporary relief
• Nerve gliding exercises: Specific exercises help the median nerve move more freely through the tunnel

When Is Surgery Necessary?

Surgery — called carpal tunnel release — is recommended when conservative treatment fails, symptoms are severe, or nerve conduction studies show significant damage. The procedure involves cutting the transverse carpal ligament to relieve pressure on the median nerve.

I perform both open and endoscopic carpal tunnel release. The endoscopic technique uses a small camera and requires only a tiny incision, allowing faster recovery and less post-operative pain. Most patients return to desk work within one to two weeks and full activity within four to six weeks.

When to See a Specialist

Do not wait if you experience persistent numbness, waking up multiple times at night due to hand tingling, or weakness in your grip. Prolonged compression can cause irreversible muscle wasting at the base of the thumb (thenar atrophy), leading to permanent loss of hand function.

About the Author

Dr. Sunil Kumar Yadav is an FNB-qualified hand and microsurgeon in Gurugram. He treats hand injuries, nerve and tendon problems, and performs microsurgical procedures including finger replantation.