Purpose: The tendency towards strength sports that have various styles such as bodybuilding, powerlifting and body classic has increased among young people. Therefore, it is necessary for the athlete to be aware of the common injuries of these styles. The aim of the researcher was to compare upper extremity injuries in these three styles.

Method: The current research is applied, descriptive and retrospective. The sample of the present research was 150 athletes of powerlifting, classic bodybuilding and bodybuilding in Karbala, who were selected voluntarily. To collect data the injury report form was used, descriptive statistics indices were used to describe the data, and ANOVA and Chi-square tests were used to test the research hypotheses. A significance level of 0.05 was considered.

Findings: The majority of people participating in the research were male, in the age range of 22 to 25 years, in the weight category of 80 to 89 kg. In the powerlifting group, the majority of people had more than 10 years of sports experience, and in the other two styles, between 1 and 2 years. Upper limb injuries in powerlifting were most common than the other two styles, and shoulder injuries was the most frequent in the powerlifting and body classic groups with 70% and 56%, respectively. In bodybuilding, the most common injuries was clavicle injury (56%). A significant difference was observed between the amount of upper limb injuries in the three styles (p=0.001).

Conclusion: The occurrence of injuries in powerlifting athletes is high compared to other types of strength sports.