causes of pins and needles in back arms and legs
Other common nerve conditions that cause pins and needles can come from peripheral nerve entrapment. This would be the case of a pinched nerve or trapped nerve otherwise known as a radiculopathy. A nerve can be pinched in your back causing problems in the arm or leg.
Pins and needles can be caused by a wide range of events and conditions involving nerves, including: 1  pressure on nerves (frequent in pregnancy) 2  pinched nerves. 3  inflammation of the nerves (neuritis) 4  nerve disease (neuropathy) 5  reduced blood supply. 6  nerve injury. 7  hyperventilation or breathing excessively.