An ACL tear is a common knee injury that usually occurs during sports involving sudden stops, pivots, jumps, or direct contact, such as basketball, soccer, or skiing. Immediate symptoms include a popping sound, swelling, pain, and a feeling of knee instability. ACL reconstruction is often recommended for active individuals to restore knee stability and function. Surgical options use grafts like the patellar tendon, hamstring tendon, or sometimes donor tissue. The procedure is performed by orthopedic surgeons specializing in sports medicine at hospitals or sports medicine centers. Post-surgery, a rigorous 9-month rehabilitation program with physical therapy is essential, progressing from swelling reduction and range-of-motion exercises to strength, agility, and sport-specific drills. Costs vary by hospital and procedure, and adherence to the rehab protocol is critical for safely returning to full activity.