Causality in medicine

The concept of causality is a part of every day life because man has always searched for the why of things as a way of dealing with and adapting to the world. In medicine, one of the central aims of study is identification of the factors or agents that cause disease with the intention of establishing treatments and especially, to apply preventive strategies. In this work, we conducted a brief review of the philosophical positions on causality, its biological models, as well as the tools used in clinical epidemiology to evaluate causal associations.