Carpal Tunnel Syndrome: What's Happening in Your Wrist — and What to Do About It
Tingling, numbness, and that "pins and needles" feeling in your hand — these are the hallmarks of carpal tunnel syndrome. Here's what you need to know.
Waking up at night with a numb hand. Struggling to open a jar or grip your phone. Fingers that tingle during the morning commute. Carpal tunnel syndrome is one of the most common nerve conditions we see — and the good news is that with the right diagnosis and treatment, most people can get real, lasting relief.
What Is Carpal Tunnel Syndrome?
Carpal tunnel syndrome (CTS) is the most common nerve entrapment condition in the body, affecting roughly 3–6% of the general adult population, with a lifetime risk of around 10%. It occurs when the median nerve — one of the main nerves running from your forearm into your hand — becomes compressed as it passes through a narrow channel in your wrist called the carpal tunnel.
What is the carpal tunnel?
The carpal tunnel is a narrow passageway on the palm side of your wrist, formed by the small wrist bones (carpals) on three sides and a tough band of tissue called the transverse carpal ligament on the other. Running through this tunnel are the median nerve and nine tendons that control finger movement.
What does the median nerve do?
The median nerve provides sensation to the thumb, index finger, middle finger, and part of the ring finger. It also controls the muscles at the base of the thumb (the thenar muscles), which are important for grip and fine hand movements. When the nerve is compressed, these functions are disrupted.
When the contents of the carpal tunnel become inflamed or the tunnel itself narrows — due to swelling, injury, or structural changes — pressure builds on the median nerve. This pressure interferes with normal nerve function and produces the characteristic symptoms of carpal tunnel syndrome.
What Are the Symptoms?
Symptoms most often affect the thumb, index finger, middle finger, and part of the ring finger. The little finger is typically not affected, as it is supplied by a different nerve — this can be a useful clue in distinguishing CTS from other conditions.
- Numbness or tingling in the hand and fingers
- A burning or "pins and needles" sensation
- Symptoms that are worse at night or after waking
- Symptoms triggered by prolonged gripping (phone, steering wheel)
- Weakness in the hand or dropping objects
- A feeling of swelling in the fingers (even when no swelling is visible)
- Discomfort or aching that radiates up the forearm
- Difficulty with fine motor tasks such as buttoning clothing
Symptoms often begin gradually and are typically worse at night — many people wake up needing to shake or flick their hand to relieve the tingling, a symptom that is highly characteristic of carpal tunnel syndrome. Over time, if left untreated, symptoms can become present during the day as well, particularly during activities involving a bent or extended wrist.
In more advanced cases, persistent nerve compression can lead to weakness in the thumb muscles and, in severe cases, visible wasting (atrophy) of the muscles at the base of the thumb. This is a sign that the condition requires prompt attention.
Severity Levels
Carpal tunnel syndrome is generally classified into three levels of severity, which guide treatment decisions:
Intermittent tingling and numbness, primarily at night. No significant weakness. Symptoms typically relieved by shaking the hand.
More frequent symptoms during the day as well as at night. Some difficulty with gripping and fine tasks. Beginning to interfere with daily activities.
Constant symptoms, significant hand weakness, and possible visible wasting of thumb muscles. Nerve function is substantially compromised.
What Causes Carpal Tunnel Syndrome?
In many cases, there is no single identifiable cause — this is referred to as idiopathic CTS. In other cases, one or more contributing factors can be identified. CTS is more common in women than men, and prevalence increases with age, particularly between the ages of 40 and 60.
A number of conditions and lifestyle factors are associated with an increased risk:
- Repetitive wrist and hand movements (e.g. typing, assembly work, manual trades)
- Use of vibrating tools over extended periods
- Diabetes mellitus
- Thyroid disorders (both underactive and overactive)
- Obesity
- Pregnancy (due to fluid retention and hormonal changes)
- Rheumatoid arthritis and other inflammatory conditions
- Previous wrist fractures or injuries
- Fluid retention (e.g. due to kidney disease or certain medications)
- Family history of carpal tunnel syndrome
A note on work and sport: Repetitive wrist activities — from keyboard use to racquet sports, cycling, and manual labour — can be contributing factors. However, CTS is rarely caused by a single activity alone. It's usually a combination of factors, and it's important not to self-diagnose based on your occupation or sport. A proper clinical assessment is always the first step.
How Is Carpal Tunnel Syndrome Diagnosed?
Diagnosis begins with a thorough clinical assessment. The characteristic pattern of symptoms — particularly the distribution of tingling across the thumb, index, and middle fingers, and the presence of night-time symptoms — is often highly suggestive of CTS.
During your assessment at Sports Medicine Institute, our sports and exercise physicians will:
- Take a detailed history of your symptoms, their onset, and how they affect your daily life
- Review your medical history and any relevant conditions
- Perform clinical examination tests, including the Phalen test (sustained wrist flexion) and Tinel sign (tapping over the carpal tunnel)
- Assess grip strength and sensation in the hand
- Check for thenar muscle wasting in more advanced presentations
- Arrange nerve conduction studies if needed to confirm the diagnosis, assess severity, or exclude other nerve conditions
- Perform an in-house bulk-billed ultrasound - can visualise the median nerve and identify swelling or compression directly, and possibly refer for a bulk-billed MRI if needed to exclude other predisposing pathology
It is worth noting that nerve conduction studies (which measure how well electrical signals travel along your nerve) are a useful tool for confirming the diagnosis and gauging severity, but a normal result does not definitively rule out CTS in someone with classic symptoms. Your treating clinician will interpret all findings together.
Other conditions — including neck nerve compression (cervical radiculopathy), thoracic outlet syndrome, and peripheral neuropathy — can produce similar symptoms to CTS and need to be considered and excluded as part of a thorough assessment.
How Is Carpal Tunnel Syndrome Treated?
Treatment is guided by the severity of your symptoms, how long you have had them, and whether there is any evidence of nerve damage. The goal is always to relieve pressure on the median nerve, reduce symptoms, and prevent long-term nerve injury.
For mild to moderate CTS, non-surgical treatments are the starting point and are effective for a significant proportion of patients. Severe CTS with objective weakness or sensory loss typically warrants surgical assessment.
Wrist Splinting
Wearing a neutral-position wrist splint keeps the wrist in a position that minimises pressure within the carpal tunnel. Night-time splinting is the most commonly recommended approach, as symptoms are often worst at night due to wrist position during sleep. Evidence shows that a neutral wrist splint is more effective than one that holds the wrist in extension. Splinting is most helpful for mild to moderate CTS and is particularly effective in pregnancy-related cases, which often resolve after delivery.
Physiotherapy
Our highly trained physiotherapists play an important role in the conservative management of CTS. A physiotherapy program may include nerve gliding exercises (also called neural mobilisation techniques), which help the median nerve move freely within the carpal tunnel, reducing irritation. Your physiotherapist will also review your hand and wrist posture during daily activities and work tasks, provide guidance on activity modification, and address any contributing factors in the surrounding neck, shoulder, and forearm. Education about symptom management and pacing is also a key component of treatment.
Ultrasound-guided Corticosteroid Injection
A corticosteroid (cortisone) injection into the carpal tunnel can provide meaningful short-term relief of symptoms by reducing inflammation around the median nerve. At Sports Medicine Institute, these injections are performed by our sports and exercise physicians under ultrasound guidance for accuracy. Evidence shows that injections can provide greater symptom relief than splinting in the short term (up to six weeks), though the benefit tends to reduce over time. They are most useful as a way of managing symptoms, allowing time for conservative treatment to work, and delaying or avoiding the need for surgery. Depending on underlying causes, they many not result in a permanent cure. They are typically not repeated multiple times due to the potential for adverse effects on surrounding tissues.
Activity Modification and Ergonomics
Identifying and modifying activities that aggravate symptoms is an important part of managing CTS. This might include adjusting workstation setup, taking regular breaks from repetitive hand activities, modifying grip patterns in sport, or changing hand and wrist positioning during tasks. Your physiotherapist can assist with a practical assessment of your specific situation.
Surgical Decompression
Carpal tunnel release surgery involves cutting the transverse carpal ligament to relieve pressure on the median nerve. It is a commonly performed and generally effective procedure, recommended for patients with severe CTS (significant weakness, sensory loss, or thenar wasting), or those who have not responded adequately to non-surgical treatment. Both open and endoscopic (keyhole) techniques are used and have been shown to be equally effective. Surgery is typically followed by a rehabilitation program with physiotherapy to restore hand strength and function. If our clinicians determine that surgery may be warranted, we will coordinate an appropriate referral to a hand surgeon.
What about anti-inflammatory tablets? Over-the-counter anti-inflammatory medications (such as ibuprofen) do not have strong evidence for providing meaningful benefit in carpal tunnel syndrome and are not recommended as a primary treatment. They may temporarily ease discomfort in some people, but they do not address the underlying nerve compression. Always discuss any medications with your doctor.
How Sports Medicine Institute Can Help
At Sports Medicine Institute, our sports and exercise physicians and physiotherapists work together to provide you with accurate diagnosis and a coordinated treatment plan — tailored specifically to your symptoms, severity, and lifestyle.
Sports & Exercise Physicians
Our specialist physicians will conduct a thorough clinical assessment, arrange and interpret nerve conduction studies or imaging where required, identify any underlying contributing conditions, and perform corticosteroid injections where indicated. They will oversee your overall management and coordinate referrals if surgical assessment becomes necessary.
Physiotherapists
Our highly trained physiotherapists deliver evidence-based conservative treatment including nerve gliding exercises, manual therapy, splinting advice, ergonomic assessment, and activity modification. They work closely with your physician to ensure a consistent and progressive approach to your recovery.
Having both disciplines available under the one roof means your care is seamless. Your physician and physiotherapist are in regular communication, and your treatment evolves as your condition improves — or if it requires escalation to further investigation or specialist review.
Frequently Asked Questions
Can carpal tunnel syndrome go away on its own?
In mild cases — particularly those related to pregnancy or temporary fluid retention — symptoms can resolve without specific treatment. However, for most people, CTS tends to persist or gradually worsen without intervention. Early treatment significantly improves the chances of full recovery and reduces the risk of permanent nerve damage.
Is carpal tunnel syndrome caused by too much computer use?
This is a common misconception. While prolonged keyboard and mouse use may contribute to CTS in some people, research does not support computer use as a primary direct cause. CTS is multifactorial — it's usually the result of a combination of anatomical, medical, and lifestyle factors rather than any single activity.
How long does recovery take?
This depends on the severity of your condition and the treatment approach. Many people with mild to moderate CTS see significant improvement within weeks to a few months of commencing splinting and physiotherapy. More severe cases, or those requiring surgery, may take several months to fully recover — particularly to regain full hand strength. Your treating team will give you a realistic expectation based on your individual presentation.
Will I need surgery?
Not necessarily. The majority of people with mild to moderate CTS can be effectively managed with non-surgical treatment. Surgery is generally recommended for severe cases, or when symptoms have persisted and have not responded adequately to a proper course of conservative treatment. Our clinicians will be transparent with you about whether surgery is likely to be needed.
Can I continue to play sport or exercise with carpal tunnel syndrome?
In most cases, yes — though certain activities may need to be modified temporarily. Our team will provide specific guidance based on your sport, your symptoms, and your stage of treatment. The goal is to keep you as active as possible while protecting the nerve from further irritation.
Is it possible to have carpal tunnel syndrome in both hands?
Yes. Bilateral (both-hand) CTS is relatively common, though one hand is usually more affected than the other. If you develop symptoms in the other hand, it should be assessed separately, as treatment needs may differ between the two sides.
```Experiencing Hand or Wrist Symptoms?
Don't put up with tingling, numbness, or a weak grip. Early assessment means faster, more effective treatment. Our team at Sports Medicine Institute is here to help.
This article has been prepared for general patient education purposes only. It does not constitute medical advice and is not a substitute for consultation with a qualified healthcare professional. The information provided reflects current evidence at the time of writing; individual presentations vary and treatment should always be tailored to your specific circumstances by your treating clinician. If you are experiencing symptoms in your hand or wrist, please seek a professional assessment. Sports Medicine Institute, Australia.
