Background & Study Aim: Every sport, when fighting with each other at least two athletes, and the essence of struggle is to select one winner (apart from the possible in many sports tie - lack of a decision), and if the fight is to physical effort, there is always a risk of injury and even death (one or even both athletes). Sport fighting is also a need to overcome their weaknesses in order to finally realize their passions. Combat sports are disciplines with elevated degree of injury rate. The aim of this study was to verify the hypothesis: there are more injuries in judo than in wrestling; judo involves injuries of upper extremities in comparison to wrestling where injuries of lower extremities are more frequent; in both sports, injuries occur the most often during competitions. Materials & methods: The study involved 117 male and female competitors, including 59 of judo and 58 of wrestling and. Information about sport injuries were gathered by means of specially developed questions contained in the questionnaire. Obtained results were analysed. Results: The main causes of the injuries in judo indicated by the respondents include poor warm-up (41%), incomplete healing of previous injuries (37%) and direct fight (22%). On the other hand, in wrestling injuries are caused by direct fight (44%), poor warm-up (29%) and incomplete healing of previous injury (27%). The vast majority of competitors responded that they continue to participate in training/competition despite pain. The answers provided by the competitors reveal that 97 out of 117 respondents (82.9%) suffered from at least one injury during their sporting career. The following number of athletes in the study group (judo, wrestling) suffered from injury: judo 44; wrestling 80. The most frequent injures included the ones of lower extremities: judo 27; wrestling 33. Most of the respondents suffered from an injury in their sporting career. Conclusions: The hypothesis turned out to a large extent to be false. In proportion more injuries (65%) were noted in wrestling (especially within upper extremity and head). However an issue turned out to be real, that lower extremity was most prone to injuries (most among judo athletes) followed by upper extremity and head, but this relationship is conspicuous among wrestling athletes. In general, lower traumatism among judo athletes (with the exception of lower extremity) can be explained by the fact that in judo the basic element of training is safe fall (ukemi waza).