The nerve jump in the right arm is considered as follows: 1, the arm is compressed or overworked resulting in vascular compression, muscle tremors, which can cause nerve jumping when severe, you can apply drugs that regulate nerves, such as methylcobalamin tablets, and avoid overworking. 2, cramps, exertion, and excitement after the muscle is in a state of tension will produce muscle spasms. 3, peripheral neuritis is peripheral neuropathy, and nerve jumping occurs in the early stage when the nerve is stuck, such as Nerve root cervical spondylosis, later may appear numbness, it is recommended to sit cervical spine film or magnetic resonance examination at the hospital. 4, epilepsy, if the symptoms repeatedly exist, may be a harbinger of epilepsy, especially patients with sequelae of cerebrovascular injury, abnormal brain discharges first start on one side, then excite the whole body. 5, hypocalcemia, muscle jumping consider low calcium caused by excitation of the neuromuscular junction, appropriate calcium supplements, more Outdoor exercise.