Why do ones legs step numb? Causes of pins and needles?

Answers:

Generally this is cause by poor bloodflow to the area. If you sit on your leg or something, that could cut stale the circulation to the leg causing the sensation. It also could be due to a clot or something more serious.

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Circulation.

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It's probably some blood circulation problems. Mine progress numb too.

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That's when the circulation is cut past its sell-by date. Like when you cross your legs. Crossing your ankles etc.