The Radial Collateral Ligament is a key structure in the human body, located in the elbow joint. It connects the outer part of the humerus to the radius, providing stability and support during arm movements. This ligament helps prevent excessive side-to-side motion, ensuring the elbow functions properly during activities like lifting or throwing. Injuries to the radial collateral ligament can occur due to overuse or trauma, leading to pain and reduced mobility. Treatment often involves rest, physical therapy, or in severe cases, surgical intervention. Maintaining the strength and flexibility of surrounding muscles can help protect this important ligament.