Anterior Cruciate Ligament (ACL) injuries are common knee injuries, often caused by sudden stops, jumps, or changes in direction, particularly in sports like soccer, basketball, and skiing. The ACL is a crucial ligament that helps stabilize the knee, and when it is torn or injured, it can cause pain, swelling, instability, and difficulty moving the knee. Treatment options include physical therapy for mild cases or surgery, such as ACL reconstruction, for more severe injuries. Recovery time varies, but with proper treatment, most individuals can return to normal activities or sports after rehabilitation.