Finger numbness: Six potential origins
Numbness in the fingers can be a distressing and inconvenient symptom, often leading to concerns about one's health. While carpal tunnel syndrome is a well-known cause, it is not the only culprit. This article explores various conditions that can cause numbness in the fingers, providing valuable insights for those experiencing such symptoms.
Peripheral neuropathy, a condition characterised by damage to the peripheral nervous system, is a common cause of numbness, tingling, or burning sensations in the hands and feet [1][5]. Diabetes, infections, autoimmune disorders, vitamin deficiencies, medications, alcohol use, and toxin exposure are among the factors that can lead to peripheral neuropathy [1][5].
Another potential cause is a vitamin B12 deficiency, which is crucial for nerve health. A deficiency can result in nerve damage, causing numbness or tingling in the hands, often worsening at night due to reduced movement and circulation [1].
Cervical radiculopathy, or a pinched nerve in the neck, can also cause numbness radiating from the neck down the arm to the fingers [5]. Thoracic outlet syndrome, compression of nerves or blood vessels near the collarbone, can lead to numbness in the fingers, especially when the arms are raised [5].
Ulnar nerve damage, often associated with cubital tunnel syndrome, can cause numbness and tingling in the pinky and ring fingers [3]. Trauma and inflammation from injuries or arthritis can damage nerves in the hand, causing numbness [3].
Less common causes of numbness in the fingers include conditions such as multiple sclerosis, a stroke, brain and spinal cord disorders, and myofascial pain syndrome [1].
Compression neuropathy, which includes carpal tunnel syndrome, occurs when pressure on a nerve causes a loss of feeling and weak or twitchy muscles in parts of a person's body [2]. Treatment for carpal tunnel syndrome may involve changing the way a person uses their hands, using a splint to prevent or reduce swelling, or receiving steroid injections to reduce inflammation [4]. In severe cases, surgery may be necessary.
It is worth noting that some medications, such as cancer treatment drugs, can cause tingling and numbness in a person's hands, with the side effects potentially being temporary or permanent [2].
The American Society for Surgery of the Hand (ASSH) and the National Institute of Neurological Disorders and Stroke are valuable resources for those seeking more information about these conditions [2][5].
In conclusion, understanding the various causes of numbness in the fingers is essential for effective diagnosis and treatment. If you are experiencing such symptoms, it is advisable to consult a healthcare professional for a thorough evaluation.
References: [1] American Society for Surgery of the Hand. (n.d.). Carpal Tunnel Syndrome. Retrieved from https://www.assh.org/handcare/diseases/carpal-tunnel-syndrome [2] American Society for Surgery of the Hand. (n.d.). Peripheral Nerve Problems. Retrieved from https://www.assh.org/handcare/diseases/peripheral-nerve-problems [3] National Institute of Neurological Disorders and Stroke. (n.d.). Ulnar Nerve Disorders. Retrieved from https://www.ninds.nih.gov/Disorders/All-Disorders/Ulnar-Nerve-Disorders-Information-Page [4] Mayo Clinic. (2021, February 17). Carpal tunnel syndrome. Retrieved from https://www.mayoclinic.org/diseases-conditions/carpal-tunnel-syndrome/symptoms-causes/syc-20353321 [5] National Institute of Neurological Disorders and Stroke. (n.d.). Peripheral Neuropathy Fact Sheet. Retrieved from https://www.ninds.nih.gov/Disorders/Patient-Caregiver-Education/Fact-Sheets/Peripheral-Nerve-Disorders-Fact-Sheet
- Obesity, a type of autoimmune disorder, can lead to peripheral neuropathy, causing numbness and tingling in the hands.
- Diabetes, a chronic disease associated with high blood sugar, is a common factor in the development of peripheral neuropathy, resulting in numbness and other symptoms in the fingers.
- Multiple sclerosis, a condition characterized by the immune system attacking the central nervous system, is a less common cause of numbness in the fingers, usually accompanied by other symptoms like depression and migraine.
- Crohn's disease, an inflammatory bowel disorder, can cause malabsorption of vital nutrients like vitamin B12, leading to nerve damage and numbness in the fingers.
- Arthritis, particularly in the hands, can cause injury to nerves and eventually lead to numbness in the fingers.
- Psoriatic arthritis, a type of joint inflammation associated with psoriasis, can similarly affect the nerves in the hands, causing numbness and tingling sensations.
- Type 2 diabetes, a condition characterized by high blood sugar, is strongly associated with an increased risk of Alzheimer's disease, and while not directly causing numbness in the fingers, it is a significant health concern for those experiencing the symptoms.
- Predictive models based on medical-condition data can help healthcare professionals determine the likelihood of a patient developing carpal tunnel syndrome, a diagnostic tool that aids in early intervention and treatment.
- Cervical spondylosis, a degenerative condition affecting the vertebrae in the neck, can lead to the pinching of nerves, causing numbness than radiates down the arm to the fingers.
- While not directly causing numbness in the fingers, science continues to explore the links between health and wellness, and conditions such as depression and cellular aging (AQ), as both may contribute to overall nerve health and the risk of developing numbness in various parts of the body.
