In Mexico, the professional career of nursery has experienced great advances during the last 20 years both in clinical practice and scientific research. Technological knowledge required to provide the nursery healthcare keep on growing. Thus, in this textbook readers will find an overview of nursery as a social profession in which the main purpose is to take care of men's health as human beings are considered independent bio-psycho-social units in continuous interaction with environment. This is a very useful tool for nursery students and general nurses, as for every healthcare professional.