Right arm and hand pain may be arm compression, excessive exercise and other physiological factors, may also be nerve root cervical spondylosis, nerve compression and other pathological factors. 1. Physiological factors: If you keep a posture for a long time, will oppress the arm, resulting in arm blood is not smooth, the phenomenon of the right arm and hand soreness and pain, change the posture of the appropriate activities can be relieved. If a large number of arm movements lead to local muscle fatigue, lactic acid accumulation in the body, will also cause arm pain, full rest will gradually relieve the symptoms. 2. Neurogenic cervical spondylosis: Neurogenic cervical spondylosis can cause numbness or pain in the arms, and sometimes it can also cause limitation of the activities of the upper limbs. When the patient suffers from radiculopathy, there will be numbness and pain in the right arm and hand. 3. Nerve compression: The compression of the ulnar and median nerves can cause elbow-tunnel syndrome and carpal-tunnel syndrome, leading to the symptoms of right arm and hand pain and swelling. When the patients appear right arm and hand pain, affecting the normal life of the phenomenon, it is recommended to go to the hospital in a timely manner, by a professional doctor for diagnosis and treatment.