Introduction: The protection of the athlete's health is paramount, the decision to return to practice depends on each particular case, it is a process where there is a lack of consensus, and requests for priorities in the investigation. Purpose. It is intended to analyze the results of rehabilitation and re-entry of injured child athletes. Method: A longitudinal, prospective and quasi-experimental study was carried out. We carry out educational and medical intervention in the experimental group, which consists of the application of the system of actions for the prevention of sports injuries in the child athlete. For the investigation, theoretical and empirical research methods were used, using two study groups. A systematic and detailed bibliographic review on the subject was carried out. In order to evaluate the rehabilitation and re-entry conditions of osteomyoarticular injuries in the child athlete. Results: Child athletes are frequently injured around the age of 13 without significant differences with respect to the study groups, with males being more frequently injured, there are multiple actors in medical care regarding rehabilitation, and however, a large number of child athletes return to training sport. Conclusions: The success of any academic program, including athletic training, depends on attracting and retaining quality students, rehabilitation is critical, and re-entry is part of it.