Multidirectional shoulder instability (MDI) is a condition in young athletes that can significantly affect their athletic performance and quality of life. This condition is characterized by excessive movement of the humeral head in multiple directions, which can cause pain, weakness, and decreased range of motion of the shoulder joint. There are several factors that can contribute to the development of multidirectional shoulder instability in young athletes, including joint hypermobility, muscle weakness or imbalances, and repetitive overhead activities. Additionally, genetic factors and previous shoulder injuries can also play a role in the development of this condition. The diagnosis of multidirectional shoulder instability is typically made by patient history and physical examination. Supporting finding can be obtained via MR (magnetic resonance) imaging. Treatment of this condition typically involves a combination of conservative and surgical interventions, depending on the severity and underlying causes of the instability. Non-surgical treatments may include physical therapy, activity modification, and proprioceptive exervises, while surgical interventions may include arthroscopic stabilization or capsular shift procedures. Overall, early recognition and treatment of multidirectional shoulder instability in young athletes is essential to prevent long-term shoulder dysfunction and disability. A multidisciplinary approach that involves sports medicine physicians, orthopedic surgeons, physical therapists, and athletic trainers can provide the best outcomes for young athletes with this condition. With appropriate treatment, most young athletes can return to their desired level of athletic activity.