The successes recorded by modern medicine in last 100 years are unquestionably of great importance for the life of man, as medicine has acquired instruments to help him navigate effectively through the vast ocean of disease.the organization of knowledge, the consciousness of public hygiene, health education, and the abundant use ofnbsp; scientificnbsp; discoveries from other branches of science such as chemistry andnbsp; physics are important factors that have allowed a milestone of quality to mark the end of the obscure medical practies of the past.The relentless development of pharmacology and the evolution of surgical tecnology and sophisticated diagnostic instruments are the expression of a growing scientific world which has supplied a solid base for obtaining results that have greatly improved the averege state of health of the world community.