The Posterior Cruciate Ligament (PCL), though less talked about than ACL, is vital for knee stability. Injuries often occur from sports trauma or accidents and can range from sprains to complete tears. Early diagnosis with clinical tests and MRI is key, as untreated PCL tears may cause instability, cartilage damage, and early arthritis. With timely treatment—whether bracing, physiotherapy, or arthroscopic reconstruction—most patients can return to active, pain-free living.