In the antiquity, the reasons of pain and the suffering were part of the reflection of studious and philosophers. Aristotle taught to its disciples of the arts that pain is part of the concept deepest in our definition as human beings. Hipcrates used grass for alliviates of pain and prescribed definitive type of leaf for women in childbirth work. During the Average Age pain had one meaning very great in the contexts religious spiritual and. The celebration or a resigned acceptance of the suffering and pain reflects the attitudes common of this period that permeia the culture occidental person to soon of the times. During much time the pain concept remained the holy ghost.

In the period of the Renaissance, Leonardo of the Vinci and its contemporaries had started to believe that the brain was the responsible central agency for the sensations. Moreover, Leonardo of the Vinci claimed the theory of that the vertebral column was the responsible one for carrear the information for the brain. The relief of the pain of the patients was always a great challenge for the doctors of all the times. In the end of century XIX and at the beginning of century XX, with the development of science, to each moment more understood they deepened the studies on the anatomy, the physiology, neurology, the diverse areas of the medicine and psychology. The evolution analgsicas and anesthetical substances (chloroform, opium, morphine, codeine) had not only allowed the development of innumerable surgical techniques, as well as of others techniques for the relief of pain, beyond verbal medications as the aspirina, that currently and one of used medicines more in the world. This accumulated knowledge allowed that the scientists started to not only have a bigger agreement of the functioning of the body, but of the importance of looking at the human being. The health for World-wide Organization of Health it is fruit of the balances physical, mental and spiritual.