Communication is the process by wich exchange information between people through verbal and nonverbal messages. To communicate effectively, the physician must possess the attitudes of analyzing both the content and process of communication. Messages efficiency is influenced by a number of variables related to the source. The most important features involved in effective communication are: communication credibility, experience, attractiveness, good companionship, similarity. The dynamic relationship between doctor and patient carrying his highly nuanced attitude involves the doctor, there are neither precise prescriptions for the behavior of "affective" in the practice of nursing service.