The concept of consent can be defined as "an act by which a person gives a decision—initiated by another—the personal approval necessary for it to be carried out." At every stage of life, individuals are called upon to give their consent and thus decide what they want. This applies, of course, to emotional and sexual life, where the concept of consent is indispensable. But it also applies to contraception, voluntary termination of pregnancy, medical consultations, medical procedures, all forms of care, end-of-life care, etc. This report analyzes the conditions that professionals in all fields—healthcare as well as education and social services—must meet, and all the questions they must ask themselves to obtain individuals’ consent before any action or procedure.