Thoracoscopy is a minimally invasive surgical procedure used to examine the chest cavity. It involves inserting a thin, flexible tube called a thoracoscope through small incisions in the chest wall. This allows doctors to visualize the lungs, pleura, and other structures, helping diagnose conditions like infections, tumors, or pleural effusions. During thoracoscopy, the surgeon can also perform biopsies or remove tissue samples for further analysis. This technique typically results in less pain and quicker recovery compared to traditional open surgery, making it a preferred option for many patients with chest-related issues.