What Causes Pins And Needles?

Pins and needles (paresthesia) are terms used to describe a sensation of prickling, skin crawling, tingling, itching, or burning that may come on suddenly or develop gradually. This feeling occurs in healthy individuals when they sit in a position for an extended period that places pressure on the nerves that supply sensation to the limb. This sensation has often been described as a limb that has fallen asleep. This feeling occurs when the sensory nerve impulses do not transmit correctly from one nerve to the next, resulting in a disruption of that impulse pathway to and from the brain.