This study analyzes the relationship between psychological and physical variables and sports injuries. A total of 297 athletes from 26 different sports participated in the study. Variables related to biomedical, psychological and sports injuries were collected. The analysis of data was performed through Bayesian networks. Our results suggest that a high probability of self-efficacy produce statistical dependence to high likelihood of sports injuries. This variable receives previous influences of biomedical variables (BMI) and psychological variables (stress). There are also consequential variables to the injury: coping strategies, and locus of control.