The lateral ligament complex refers to a group of ligaments located on the outer side of the ankle. These ligaments play a crucial role in stabilizing the ankle joint, helping to prevent excessive movement that could lead to injuries. The main ligaments in this complex include the anterior talofibular ligament, calcaneofibular ligament, and posterior talofibular ligament. Injuries to the lateral ligament complex are common, especially in sports that involve jumping or quick changes in direction. A sprain occurs when these ligaments are stretched or torn, leading to pain, swelling, and instability in the ankle. Proper rehabilitation and strengthening exercises are essential for recovery and to prevent future injuries.