Background:
Common injuries in taekwondo athletes include pelvis, thigh, knee, Achilles tendon and ankle, which occur at the club level due to the lack of knowledge of trainers and non-scientific exercises, muscle weakness, poor flexibility and poor neuromuscular coordination. This research was carried out with the aim of knowing the common injuries in taekwondo athletes and the reasons for their occurrence, in order to plan appropriate exercises to improve performance and improve the quality of execution of techniques of taekwondo athletes of Hamedan province.

Materials and methods:
This study was of an Analytical cross-sectional type, and male and female taekwondo athletes working in the league of the Taekwondo Board of Hamedan Province, in Kyorugi and Poomsae branches, who participated in the provincial league from 2013 to 2023, were included in this study. 40 coaches (10 men's kyorugi, 10 women's kyorugi, 10 men's Poomsae and 10 women's Poomsae) based on the number of injuries of athletes in the scope of 10 years of specialized activity of taekwondo, ranked the injuries and the main reasons for the occurrence of injuries.

Results:
The most common injuries in the order of the percentage of taekwondo athletes, according to the opinion of the trainers with official license from the Taekwondo Federation with coaching grades 1 to 3 working in Hamedan province, were:

Men's kyorugi Injuries: (Cruciate ligament (70%) -Hamstring (20%) - Ankle (10%)).
Women's kyorugi Injuries: (Cruciate ligament (50%) - Hamstring (30%)- Ankle (20%)).
Men's Poomsae Injuries: (Hamstring (50%) - Cruciate ligament (30%) – Ankle (20%)).
Women's Poomsae Injuries: (Hamstring (60%) - Cruciate ligament (30%) - Ankle (10%)).

Causes of injuries:
Men's kyorugi: )Muscle weakness (60%) - low flexibility (30%) - poor physical fitness (10%)(
Women's kyorugi: )Muscle weakness (50%) - low flexibility (30%) - poor physical fitness (20%)(
Men's Poomsae: )Muscle weakness (50%) - poor physical fitness (30%) - low flexibility (20%)(
Women's Poomsae: )Muscle weakness (70%) - poor physical fitness (20%) - low flexibility (10%)(

Conclusion:
The most common injuries in Taekwondo in kyorugi, in men and women are Cruciate ligament, Hamstring muscle and Ankle injuries. In Poomsae, in men and women, Hamstring muscle, Cruciate ligament and Ankle injuries are in order of frequency. The reasons for the occurrence of injuries in men and women, in kyorugi are muscle weakness, low flexibility, and poor physical fitness, respectively and in Poomsae in men and women are muscle weakness, poor physical fitness and low flexibility. Therefore, by designing basic exercises to strengthen muscles, increase flexibility and improve physical fitness, the occurrence of the above injuries can be prevented to a great extent.