The integration of the Metaverse into smart healthcare systems presents transformative opportunities for patient care, medical training, and health data management. In smart healthcare system, Metaverse is defined as an immersive and interconnected digital environment that utilizes virtual reality (VR), augmented reality (AR), artificial intelligence (AI), and the Internet of Medical Things (IoMT) to enhance the delivery and experience of healthcare services. Therefore, this chapter explores the concept of the Metaverse within the Smart Healthcare System setting, aiming to establish a comprehensive definition and framework. The definition provided in this framework highlights the convergence of advanced technologies to build a collaborative, patient-centric ecosystem that transcends physical limitations. By examining its potential, challenges, and ethical considerations, this chapter offers a foundational understanding for future research and development of Metaverse-driven innovations in the evolving landscape of smart healthcare systems. The findings suggest that an integrated Metaverse framework can revolutionize healthcare delivery by providing immersive and interactive experiences for patients and healthcare professionals alike. The implications of this chapter extend to policy-making, technology development, and future research directions in the domains of healthcare innovation and virtual environments.