Pain in the arm when angry is mainly due to the presence of an underlying disease or systemic disease in the upper extremity, and the pain in the upper extremity occurs due to the stimulation of the stress reaction when angry and excited, leading to the onset of the underlying disease. In this case, the first thing you should do is to calm down, lie down and rest, drink some water, in order to relax your emotions and reduce the stimulation of the emergency response. Secondly, you can support local symptomatic treatment, such as local gentle massage, hot compresses and other therapeutic means to relieve the pain of the upper limbs. Generally, pain caused by emotional stimulation will be relieved soon after sedation and elimination of the emergency response and supportive allopathic treatment. However, it is recommended to go to the hospital for examination to prevent persistent injury to the upper limbs and adverse consequences.