[Ethics in teaching medicine]

The important ethical aspect of medical education is presented; the ethics of the professor (educator, facilitator, teacher), of the student (both as a participant in the teaching or as a teacher) and with the patient, a relationship that should be holistic and humanitarian. Mention is made of the mistakes that can be made in teaching and that create an ethical conflict between educator and student. The Mexican Official Norms that establish and govern undergraduate and postgraduate teaching (all processes in the formation of Human Resources for Health) are presented. The Mexican Official Norm that governs research on human beings and its ethics, which is essential for the formation of the physician, is commented on.