Objective:

to determine the occurrence and characteristics of musculoskeletal and osteoarticular injuries in Brazilian Jiu-Jitsu (BJJ) athletes. Method: A closed questionnaire was applied to 146 BJJ athletes about the injuries suffered, self-diagnosed or clinically diagnosed, in the last 12 months. The data were analyzed using the SPSS © 20.0 program. Results: In total, 403 injuries were reported. Most of the athletes participating in this research are at the beginner level, with the blue graduation range having the largest sample size (43.15%). The age group between 18 and 28 years old (50.68%) was the one that reported the highest number of injuries (53.35%). In addition, it was observed that most athletes train between 2 and 6 hours per week (65%), with this portion of the sample being the most affected by injuries (246 in total). In general, the knee was the most affected area (25.1%) and finger dislocation was the most frequent injury (12.7%). Among other results found, it is noteworthy that the higher the weekly training hours, the lower the risk of injuries (r = -0.85). As well as that, the older the athlete, the greater the frequency of injuries (r = 0.93). It is noteworthy that the injuries occurred, to a large extent, during training (81.5%), the majority of which were severe in nature (58%).