Anna Staehli Wiser, DPT, FAAOMPT
Tingling, numbness, or a “pins and needles” sensation in the hands is a very common complaint. While it may seem minor at first, these symptoms can represent irritation or dysfunction anywhere along the nervous system—from the neck to the fingertips. Understanding the potential causes is essential to ensuring proper diagnosis and effective treatment.
How Sensation Travels to the Hand
The sensation in your hands originates in the brain and travels down the spinal cord, exiting through the cervical spine (neck), and continuing through a network of peripheral nerves into the arm and hand. Because of this long pathway, symptoms such as numbness or tingling may arise from multiple locations—not just the hand itself.
Common Causes of Hand Numbness
1. Peripheral Nerve Entrapment
One of the most common causes of intermittent hand tingling is compression of a nerve along its pathway. The most well-known example is carpal tunnel syndrome, which involves compression of the median nerve at the wrist. However, nerve compression can also occur at the elbow, shoulder region, or cervical spine. Carpal tunnel syndrome is the most common entrapment neuropathy encountered in clinical practice.¹
2. Double Crush Phenomenon
In many cases, nerve irritation does not occur at just one location. The double crush phenomenon describes a situation in which a nerve is compressed in more than one area along its course. For example, a nerve may be mildly compressed in the neck and again at the wrist. Individually, each compression might not cause symptoms—but together, they can significantly impair nerve function.² This concept helps explain why treating only one site of compression may not fully resolve symptoms.
3. Cervical Spine Conditions
The cervical spine plays a critical role in hand sensation. Age-related changes such as disc degeneration, arthritis, and spinal cord compression can lead to symptoms in the hands. Degenerative cervical myelopathy is the most common cause of spinal cord dysfunction in adults and can result in impaired hand dexterity, numbness, and coordination deficits.³ Cervical radiculopathy can also mimic or coexist with distal nerve entrapments, complicating diagnosis.⁴
4. Peripheral Neuropathy
When numbness is constant, especially affecting both hands and often the feet, peripheral neuropathy should be considered. This condition is commonly associated with diabetes, metabolic disorders, chemotherapy, and nutritional deficiencies. Distal symmetric polyneuropathy is the most common form and typically presents in a “stocking-glove” distribution.⁵
The Importance of a Thorough Evaluation
Because nerve symptoms can originate from multiple locations, a comprehensive assessment is essential. This includes examination of the cervical spine, evaluation of nerve mobility, and assessment of muscle function throughout the upper extremity. Electrodiagnostic testing, including nerve conduction studies and electromyography, can help localize the site of nerve dysfunction and differentiate between conditions.⁶
Why Treating Only the Wrist May Not Be Enough
It is a common misconception that conditions like carpal tunnel syndrome are caused solely by local compression at the wrist. In reality, proximal nerve involvement may coexist and influence symptoms. Failure to recognize this can result in persistent symptoms even after treatment directed only at the wrist.²˒⁴
A Whole-System Approach to Treatment
Effective management of hand numbness should consider the entire nervous system. Treatment may include manual therapy, soft tissue techniques, nerve mobility exercises, and postural correction. Addressing contributing factors along the full length of the nerve pathway is often necessary to achieve optimal outcomes.¹˒²
When to Seek Care
You should seek evaluation from a healthcare provider if you experience persistent or worsening numbness, loss of hand coordination or strength, symptoms in both hands, numbness associated with neck pain, or difficulty with fine motor tasks. Early evaluation can help prevent progression and improve outcomes.
Final Thoughts
Hand numbness is rarely a simple, isolated issue. Because nerves travel long distances through the body, symptoms in the hand often reflect a more complex interaction of factors along the entire nerve pathway. A thorough, evidence-based evaluation that considers the neck, shoulder, arm, and hand is essential for accurate diagnosis and effective treatment.
References
Padua L, Coraci D, Erra C, et al. Carpal tunnel syndrome: clinical features, diagnosis, and management. Lancet Neurol. 2016;15(12):1273-1284. doi:10.1016/S1474-4422(16)30231-9
Upton AR, McComas AJ. The double crush in nerve entrapment syndromes. Lancet. 1973;2(7825):359-362. doi:10.1016/S0140-6736(73)93196-6
Fehlings MG, Tetreault LA, Riew KD, Middleton JW, eds. Degenerative cervical myelopathy: diagnosis and management. J Neurosurg Spine. 2017;27(1):1-2.
Iyer S, Kim HJ. Cervical radiculopathy. Curr Rev Musculoskelet Med. 2016;9(3):272-280. doi:10.1007/s12178-016-9349-4
Callaghan BC, Price RS, Feldman EL. Distal symmetric polyneuropathy: a review. JAMA. 2015;314(20):2172-2181. doi:10.1001/jama.2015.13611
England JD, Gronseth GS, Franklin G, et al. Practice parameter: evaluation of distal symmetric polyneuropathy. Neurology. 2009;72(2):177-184. doi:10.1212/01.wnl.0000336345.70511.0f
