Carpal Tunnel Syndrome: What it is, Causes, Symptoms, Treatment & More

What is Carpal Tunnel Syndrome?

Carpal tunnel syndrome happens when the median nerve in your wrist gets pressed by swelling in a narrow passage called the carpal tunnel, which is made up of bones and ligaments. This nerve lets you feel and move your thumb, index finger, middle finger, part of your ring finger, and some muscles at the base of your thumb. If the tissues around the tendons in this tunnel swell or get inflamed, they squeeze the nerve. This can cause pain, numbness, tingling, and weakness in your hand. If not treated, these symptoms can slowly get worse and make daily tasks harder.

What are the Types of Carpal Tunnel Syndrome?

There are two main types of Carpal tunnel syndrome:

Stages of Carpal Tunnel Syndrome

Carpal tunnel syndrome develops when pressure on the median nerve increases. Some crucial stages of this disease include the following:

How Common is Carpal Tunnel Syndrome in India?

Carpal tunnel syndrome is becoming more common in India, especially among people whose work involves repeated hand and wrist movements. This includes computer users, factory workers, drivers, tailors, healthcare workers, and homemakers. The condition is seen more often in women than in men and usually affects adults between 40 and 50 years old. More frequent use of computers, smartphones, and repetitive tasks at work has led to a rise in such cases. Recognising the symptoms early and getting timely treatment can help reduce disability and improve hand function.

Carpal Tunnel Syndrome Symptoms

Carpal tunnel syndrome symptoms usually begin gradually and may get worse without treatment. Early and advanced symptoms of this condition include:

What Causes Carpal Tunnel Syndrome?

The exact cause is not always known, but several factors can increase the risk of developing carpal tunnel syndrome, such as:

• Repetitive Hand Movements: Repeated bending and movement of the wrist during activities such as typing, sewing, assembly line work, or using vibrating tools can increase pressure on the median nerve.

• Wrist Injury: Fractures, sprains, or dislocations of the wrist may reduce the size of the carpal tunnel and compress the median nerve.

• Diabetes: Diabetes can damage nerves and increase the risk of nerve compression disorders, including carpal tunnel syndrome.

• Rheumatoid Arthritis: Inflammation of the wrist joints caused by rheumatoid arthritis can narrow the carpal tunnel and compress the median nerve.

• Hypothyroidism: An underactive thyroid gland can cause fluid retention and tissue swelling around the wrist, increasing pressure on the median nerve.

• Pregnancy: Hormonal changes and fluid retention during pregnancy may temporarily increase pressure inside the carpal tunnel, leading to symptoms.

• Obesity: Excess body weight is associated with an increased risk of developing carpal tunnel syndrome because it may contribute to increased tissue pressure around the wrist.

• Frequent Use of Vibrating Tools: Regular use of power tools or machinery that produce vibration may increase the risk of median nerve compression over time.

What are the Complications of Carpal Tunnel Syndrome?

If left untreated, carpal tunnel syndrome can gradually worsen, affect hand function and cause serious issues, such as the following:

• Permanent Nerve Damage: Continuous pressure on the median nerve may lead to permanent nerve injury if treatment is delayed. This can result in long-lasting numbness, weakness, and reduced hand function.

• Weakness of the Hand: Ongoing pressure on the median nerve can make the hand muscles weaker, which makes it harder to grip, lift, or hold things securely.

• Thumb Muscle Weakness: If nerve damage lasts a long time, the muscles at the base of the thumb can shrink. This can make the thumb weaker and make small hand movements harder.

• Loss of Sensation: If the nerve is pressed for a long time, it can become harder to feel heat, cold, pain, or touch in the affected fingers. This can make accidental injuries more likely.

• Difficulty Performing Everyday Tasks: Tasks that need careful finger movements, like buttoning clothes, using utensils, or fastening jewellery, can become harder to do.

• Reduced Hand Function: Untreated carpal tunnel syndrome can interfere with daily activities such as writing, typing, cooking, dressing, or using mobile phones because of pain, numbness, and weakness.

• Chronic Pain: Some people may develop persistent pain in the wrist, hand, or forearm that continues even after repetitive activities have stopped.

Related Diseases Comparison

Carpal tunnel syndrome can be confused with other conditions that cause hand pain or numbness. The table below highlights the differences.

Carpal Tunnel Syndrome vs Cervical Radiculopathy vs Arthritis

How is Carpal Tunnel Syndrome Diagnosed?

Doctors usually diagnose Carpal Tunnel Syndrome through a physical examination and medical history review. Various methods to diagnose this condition are as follows:

• Medical History and Physical Examination: The doctor will ask about your symptoms, occupation, medical history, and daily activities. A physical examination is performed to assess sensation, muscle strength, and hand function.

• Tinel's Sign: The doctor gently taps over the median nerve at the wrist. Tingling or electric shock-like sensations in the fingers may suggest carpal tunnel syndrome.

• Phalen's Test: You may be asked to bend your wrists and press the backs of your hands together for about one minute. Reproduction of numbness or tingling supports the diagnosis.

• Nerve Conduction Study (NCS): This test checks how fast electrical signals move through the median nerve. If the signals travel more slowly, it shows there is nerve compression and helps doctors see how serious it is.

• Electromyography (EMG): This test looks at the electrical activity in muscles controlled by the median nerve. It helps find nerve damage and can also show if other neurological problems are present.

• Ultrasound or MRI: Imaging tests like ultrasound or MRI may be recommended in selected cases to assess the median nerve or identify other causes of wrist pain, swelling, or nerve compression.

How is Carpal Tunnel Syndrome Managed?

Your doctor may suggest one or more of the following treatments for carpal tunnel syndrome, depending on the condition's stage:

• Wrist Splinting: Wearing a wrist splint, especially at night, keeps your wrist straight and helps take pressure off the median nerve.

• Lifestyle Modification: Making changes to your daily activities, like doing fewer repetitive wrist movements, taking breaks, and setting up your workspace better, can ease symptoms and help prevent more nerve problems.

• Medication: Non-steroidal anti-inflammatory drugs (NSAIDs) can help with pain and swelling, but they do not fix the nerve compression itself.

• Corticosteroid Injections: Steroid injections into the carpal tunnel can lower inflammation and ease symptoms, especially if your case is mild or moderate.

• Physiotherapy: Stretching, strengthening, and nerve-gliding exercises prescribed by a physiotherapist may improve wrist flexibility and reduce symptoms.

• Carpal Tunnel Release Surgery: Surgery may be recommended when symptoms are severe or do not improve with conservative treatment. The procedure relieves pressure on the median nerve by cutting the ligament which forms the roof of the carpal tunnel.

Medicines Used to Treat Carpal Tunnel Syndrome

The doctors may prescribe the following medicines to reduce symptoms associated with Carpal Tunnel Syndrome:

• Non-steroidal anti-inflammatory drugs (NSAIDs) such as Ibuprofen or Naproxen (for temporary pain relief)

• Corticosteroid injections into the carpal tunnel

• Pain-relieving medicines such as Paracetamol

• Wrist splints, especially for night-time use

Disclaimer: The medicines listed above are some of the most common medicines for carpal tunnel syndrome. Your doctor might suggest other options depending on your symptoms, medical history, and overall health.

Can Carpal Tunnel Syndrome Be Cured?

Most people with carpal tunnel syndrome do very well, especially if they get diagnosed and treated early. Many find relief with wrist splints, changing activities, physiotherapy, or medications. If symptoms are severe or do not go away, surgery to release the carpal tunnel is often very effective and can provide lasting relief.

Waiting too long to get treatment can cause permanent nerve damage, muscle weakness, or loss of hand function. Regular check-ups and using good ergonomic habits can help prevent symptoms from coming back and keep your hands working well.

Carpal Tunnel Syndrome During Pregnancy

Due to hormonal changes and increased fluid, carpal tunnel syndrome frequently occurs during pregnancy. Usually beginning in the second or third trimester, symptoms frequently improve on their own when swelling decreases after the delivery.

Most pregnant women can manage these symptoms with simple treatments, and surgery is rarely needed during pregnancy. Regular check-ins with a doctor help keep symptoms under control. Tips to manage carpal tunnel syndrome during pregnancy are the following:

• Wear a wrist splint, especially at night, to keep the wrist in a neutral position.

• Avoid repetitive hand and wrist movements whenever possible.

• Elevate your hands and wrists to help reduce swelling.

• Perform gentle hand and wrist stretching exercises recommended by your healthcare provider.

• Take frequent breaks while typing, cooking, or performing household tasks.

• Consult your doctor if symptoms become severe, persistent, or interfere with daily activities.

Can Carpal Tunnel Syndrome Be Prevented?

Although carpal tunnel syndrome cannot always be prevented. However, certain lifestyle and workplace measures may reduce the risk of developing the condition.

• Maintain Proper Wrist Position: Keep your wrists in a neutral position while typing, writing, or performing repetitive tasks to reduce pressure on the median nerve.

• Take Regular Breaks: Frequent short breaks during repetitive hand activities help reduce strain on the wrist and hand muscles.

• Use Ergonomic Equipment: Ergonomic keyboards, mouse devices, and properly adjusted workstations help maintain good wrist posture and reduce repetitive stress.

• Perform Hand and Wrist Exercises: Gentle stretching and strengthening exercises improve flexibility and reduce stiffness in the wrist and fingers.

• Maintain a Healthy Weight: Maintaining a healthy body weight may reduce the risk of developing carpal tunnel syndrome and other musculoskeletal disorders.

• Manage Underlying Medical Conditions: Proper treatment of diabetes, hypothyroidism, rheumatoid arthritis, and other health conditions may help reduce the risk of nerve compression.

• Avoid Prolonged Wrist Pressure: Avoid resting your wrists on hard surfaces for long periods or putting continuous pressure on your palms. Use padded wrist supports if needed to minimise stress on the median nerve.

• Use Proper Hand Technique: When you do repetitive tasks, try to use your whole hand rather than just your fingers or wrists. Using less force and switching between tasks can help prevent strain and lower your risk of carpal tunnel syndrome.

Carpal Tunnel Syndrome Treatment Cost in India

The cost of Carpal Tunnel Syndrome treatment depends on the severity of the condition, investigations, conservative treatment, and whether surgery is needed. Here's a quick breakdown of the treatment cost:

Disclaimer: The above-mentioned costs are indicative and could vary based on the hospital's facilities, the location, the experience of the doctor, and the duration of the therapy.

Does Health Insurance Cover Carpal Tunnel Syndrome?

Yes, the majority of comprehensive health insurance plans provide coverage for carpal tunnel syndrome but only if the treatment is medically necessary. The plans generally cover medical visits, diagnostics such as EMG and nerve conduction examinations, prescription medications, physiotherapy, operation theatre, surgery costs, and hospitalisation charges. However, the extent of coverage varies across insurers and plans. So, it is important to check your insurance policy documents or contact your insurer to find out the benefits, exclusions, and applicable waiting periods.

How Much Health Insurance Coverage is Needed for Carpal Tunnel Syndrome Treatment?

The cost of treating carpal tunnel syndrome depends on the severity of the condition and the kind of treatment you need. Mild cases might only need doctor visits, wrist splints, medicines, and physiotherapy. More severe cases that need surgery and rehab can be much more expensive.

Usually, a health insurance policy with a sum insured of at least ₹10 lakh to ₹15 lakh is enough to cover these costs and other unexpected medical needs. If you want more financial protection, you can choose a higher sum insured.

Living with Carpal Tunnel Syndrome in India: Daily Challenges & Lifestyle Changes

Early diagnosis and therapy can reduce the symptoms of Carpal Tunnel Syndrome and help avoid long-term nerve damage.