Jumping rope appear arm pain may be due to strenuous exercise, tendonitis, muscle strain and other reasons. 1. Strenuous exercise: may be due to the patient during this period of strenuous exercise, caused by a large number of arm lactic acid accumulation, the pain appeared. Common exercises include jumping rope, pull-ups and so on. 2. Tenosynovitis: it is a chronic aseptic inflammatory change in the tendon sheath due to repeated mechanical friction, mainly caused by improper posture, long-term friction of the tendon due to the nature of the work, and hormonal level changes. When tenosynovitis occurs in the arm, due to the stimulation of inflammation, the patient may appear to jump rope to appear arm pain. 3. Muscle strain: it may be that the muscle is not stretched before the exercise, and when completing various actions, the muscle actively and violently contracted more than the burden capacity of the muscle itself caused by the injury. Thus, patients can also appear jumping rope arm pain phenomenon, may be accompanied by localized swelling. It is recommended that patients with arm pain from jumping rope go to the hospital in time and follow the doctor’s instructions for treatment to avoid delaying the condition.