A brief “pins and needles” sensation in the hands, medically called paresthesia, is common and usually harmless. It often happens after sleeping awkwardly, leaning on an arm, or holding one position too long, which can temporarily compress nerves or restrict blood flow. Once circulation returns, the tingling typically fades. Repetitive motions like typing or using tools may also irritate nerves and, over time, contribute to conditions such as carpal tunnel syndrome.
Nutrition plays an important role in nerve health. Vitamins—especially B12—help maintain proper nerve function, and low levels can lead to numbness or tingling. Electrolyte imbalances may have similar effects. Persistent symptoms, however, can signal underlying conditions such as diabetes, autoimmune disorders, or circulation problems. Structural issues in the neck, spine, or wrist may also place pressure on nerves.
While occasional tingling is normal, ongoing or worsening sensations—especially with weakness or pain—should be evaluated by a healthcare professional to protect long-term nerve health.
