Introduction. The Royal Decree 183/2008 highlights the relevance of the formative assessment in the residence system for specialist training. In formative assessment, the most important is the feedback between learner and teacher, contributing so to the continuous improvement in teach-learning process. An essential part of the formative assessment is the direct ask posed to whom the formation is directed. Subjects and methods. Since June 2007, the residents filled a survey which includes 37 closed questions, and an one open question. In this questionnaire we expect their opinion about aspects in the education received in the past year. We analyzed the questionnaires of three years (total 266 surveys were analyzed). Results. Medical guards and emergency area were perceived as an important problem, as a place for improvement. Other relevant areas for improvement were the training for residents' ability for effective bibliographic researches, and greater involvement in research activities. Conclusions. Studies like these should be used to implement efficient actions aimed to detect problems and to improve deficiencies in residents' training. It has to be a reference point for following the learning evolution process in our center. Failure to make such studies it will be difficult to know the progress or deficiencies, from the learner standpoint, that take place in a particular area of training of specialists in health sciences.