The right shoulder joint sudden soreness causes, mainly three aspects: first, due to the right shoulder joint sudden force, more than the normal muscle load, and muscle fiber strain, which will produce local inflammatory edema and lactic acid and other metabolites, stimulation of peripheral nerves will cause sudden soreness of the symptoms. Second, due to shoulder joint strain, such as continuous exertion, and shoulder joint relaxation posture is not right will easily lead to fatigue and form strain, in the local production of lactic acid and inflammation, these metabolites increase the accumulation, so it is also prone to sudden soreness performance. Third, due to the cold shoulder joint, especially the shoulder joint itself has chronic aseptic inflammation lesions of patients, once the cold muscle tissue becomes more tense, the circulation will also be due to cold and vasoconstriction, decreased circulation, so there will be a decrease in venous return, resulting in more metabolites to increase the buildup, is also prone to sudden aches and pains.