Electricity: Pins & Needles are medically defined as paresthesias and have several causes: -Pinched nerves (neck, arm or wrist - think carpal tunnel or similar or herniated disc) -Neuropathy (damaged nerves from diabetes, medications or toxin exposure) -Blood flow issues such as Raynaud's Patients are examined, pulses checked, reflexes tested and strength assessed. Additional tests such as an xray, MRI or EMG
Answered 11/2/2017
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