This paper describes possible mechanism of the somatic referred pain. The study of somatic referred pain mechanism is necessary because many patients suffer from several types of muscle pain. This review compares the somatic referred pain with MPS(myofacial pain syndrome). There are similarities between these two pain mechanisms. But the therapeutics of somatic referred pain is yet remain fully unknown. Therefore this review consider origin of variable referred pain. Also it is recommendable to study referred pain mechanism in terms with oriental medical pain concept.