It is known that excessive workload during trainings and competitions, doing sports at an early age, using incorrect training methods, as well as violations of their rules and norms contribute to the appearance of various injuries among the trainees. This leads not only to health disorders and to termination of training, but also sometimes leads to disability. The aim of the research is to study the types of injuries and traumas according to sports and the causes of their occurrence. In the course of the research, the study and analysis of literary sources on the problem, psycho-pedagogical research and observations were used. During the research, certain data were obtained according to the frequency of injuries in various sports. According to the coaches, injuries are more common in martial arts and in game types. Questions and conversations with coaches have established that injuries are more likely to occur due to the athlete's poor health, fatigue and overexertion of various organs, in particular, the nervous system. More often, the cause of injuries is excessive competition and workload. It was also noted that slight and chronic injuries that occurred mainly among athletes with poor technical training in connection with participation in competitions led to nervous system tension. In order to prevent the occurrence of possible injuries in time, it is necessary to know the causes of their occurrence. Those reasons are violations in the process of organizing training, violations in the learning process, injury can be caused when the coach does not provide an individual approach to the athlete during training and competition, the use of sports equipment having certain inconsistencies or poor condition, uneven floor surface, poor position of mats, tracks and other equipment, etc. inconsistency of sports uniforms and shoes for athletes during training, violations of sanitary and hygienic conditions, insufficient research on the trainees’ health condition, incorrect use and underestimation of means and methods of insurance and assistance in the training process, violation of safety equipment rules. For the prevention of injuries, specialists of various sports can be guided by the percentage scale of the placement of injuries proposed and researched by us, depending on the characteristics of the sport.