The sensory organs of the arm receive pain stimuli, which are transmitted to the central nervous system via the conduction nerves, and the human brain produces pain sensations. When the sensory organs, conduction nerves or the central nervous system, any one of the links of the problem, may lead to arm pins and needles like tingling. Clinically, the more common reason is that the conduction nerve innervating the arm sensation is stuck or stimulated, easy to cause tingling in the arm, the more common diseases are cervical spondylosis, peripheral nerve entrapment, etc., you need to go to the hospital to find a specialist doctor, through the examination to further clarify the diagnosis.