Hand exertion arm tendon pain, the main consideration with local inflammation, muscle soft tissue strain or excessive fatigue and so on. 1. Local inflammation: if there is inflammation in the area of the arm tendon, such as local aseptic inflammation, the stimulation of inflammation is easy to trigger the symptoms of pain, and when the hand exerts itself due to the contraction of the local muscles, it can lead to more obvious symptoms of pain. 2. Muscle soft tissue strain: usually in the process of exertion, if the posture is poor or excessive force, resulting in muscle soft tissue strain in the arm area, easily triggered by the performance of the arm tendon pain. 3. Excessive fatigue: hand exertion if the time is relatively long or excessive force, may produce excessive muscle fatigue in the arm, resulting in excessive secretion of local lactic acid, so there are hand exertion in the arm tendon pain symptoms. If the symptoms of pain are more obvious, you can go to the orthopedic clinic for examination, to clarify the cause of the disease and then treatment. Before the pain is not relieved, do not continue to exert oneself, otherwise it is easy to lead to the aggravation of the symptoms, usually in the exercise before a good warm-up activities.