Pain is an unpleasant feeling and emotional experience that is related to real or potential tissue damage or a damage that is defined similarly. Pain is mostly subjective (Merskey, Bogduk 1986). From many points of view, the pain is a common symptom intended for seeking aid (Dickens et al. 2002). International Association for the Study of Pain (IASP) defines the pain as “an unpleasant emotional...
