Definition
"Pins and needles" describes a tingling or prickling sensation, usually in the hands or feet. It often happens after prolonged pressure on a nerve, like when your leg "falls asleep." The feeling is caused by the nerves waking back up. It's usually temporary and harmless. Think of it as your body's way of saying, "Hey, I need some circulation down here!" It can be annoying but generally subsides quickly.