In obstetrics, several options are offered to improve health outcomes. These possibilities can be considered as many decisions that parents will need to face. To proceed to the choice of care, the model of shared decision making is currently the main paradigm. Taking as an example the decision process regarding the mode of delivery after cesarean section, we explore some aspects of the process of decision making in obstetrics. In general, decision making regarding the mode of delivery after cesarean is more the principle of autonomy then shared decision. Individual or group counseling, or decision analysis tools are promising tools to help with the various problems encountered.