Video-Assisted Thoracoscopic Surgery (VATS) is a minimally invasive surgical technique used to diagnose and treat conditions in the chest, such as lung diseases or tumors. It involves making small incisions in the chest wall and using a camera, called a thoracoscope, to guide the surgeon. This approach reduces recovery time and minimizes pain compared to traditional open surgery. During VATS, the surgeon can view the chest cavity on a monitor and perform procedures using specialized instruments. This technique is often preferred for its effectiveness and lower risk of complications, making it a valuable option for patients needing thoracic surgery.