The arm cramps are caused by a variety of possible causes, including muscle spasms caused by strain, mostly due to prolonged exertion, which can lead to aseptic inflammation of the muscle fascia over time. It is necessary to pay attention to the combination of work and rest, appropriate rest, pay attention to warmth, which is conducive to the prevention of symptoms, symptoms can be obvious through physical therapy, hot compresses, massage. If you have cramps in your arm, it may be caused by nerve factors. The symptoms can be clarified by cervical CT or MRI.