What’s Behind That Tingling or Numbness in Your Hands?
Tingling or numbness in the hands can arise from many sources—some harmless, others more serious. A common and temporary cause is sleeping in an awkward position, which can compress nerves and affect sensation.
Repetitive activities, like prolonged typing or using tools, may lead to nerve irritation, especially in conditions such as carpal tunnel syndrome. Deficiencies in nutrients—particularly vitamin B12—can also affect nerve health, leading to tingling in the hands or feet.
Electrolyte imbalances can disrupt nerve signaling, producing similar symptoms. Diabetes is a leading cause, often resulting in diabetic neuropathy from long-term nerve damage.
Issues in the spine, like herniated discs or spinal stenosis, can press on nerves that connect to the hands. Autoimmune conditions like multiple sclerosis may also impair nerve function.
In some cases, poor circulation—such as in Raynaud’s phenomenon—causes numbness or a cold, tingling sensation. Less commonly, nerve compression from cysts, tumors, or infections like shingles or Lyme disease can be the culprit.
While occasional tingling is usually nothing to worry about, frequent or ongoing symptoms warrant medical attention. Early diagnosis and treatment are key to addressing underlying issues and avoiding permanent nerve damage.
