Virtual surgery, also known as surgical simulation, has emerged as a transformative technology in the field of medicine, offering innovative solutions for surgical training, preoperative planning, and surgical skill enhancement. This paper provides a comprehensive review of recent advancements, applications, and challenges in virtual surgery. We discuss various virtual surgery techniques, including virtual reality (VR), augmented reality (AR), and mixed reality (MR), and their contributions to surgical education, patient care, and surgical innovation. Additionally, we examine the current state-of-the-art virtual surgery systems, simulation platforms, and surgical training curricula. Furthermore, we explore the challenges and limitations associated with virtual surgery, such as technological constraints, validation and assessment issues, ethical considerations, and cost-effectiveness. Finally, we discuss future directions and opportunities for research and development in virtual surgery, with a focus on addressing existing limitations and advancing the field towards widespread adoption and integration into clinical practice. Keywords: Virtual surgery, surgical simulation, virtual reality, augmented reality, mixed reality, surgical training, preoperative planning, surgical education, surgical innovation.