The book presents the latest advances in soft electronics in biomedical engineering and its potential applications in various biomedical fields. The contributors provide comprehensive coverage of how soft electronics are used in diagnostics and monitoring, medical therapy, neural engineering, and wearable and implantable systems. In particular, some emerging research areas such as advanced soft robotics, fiber sensing technologies, and power optimization strategies are explored. In addition, the book highlights international standardization activities in wearable technologies and implantable bioelectronics. Soft electronics is a rapidly emerging field dedicated to the development of flexible and stretchable electronic devices and systems, setting them apart from conventional rigid electronics. The unique characteristics of soft electronics, such as flexibility, stretchability, conformability, and lightweight, enable their suitability for a wide range of applications, including wearable devices, soft robotics, medical healthcare, flexible displays, and conformal sensors. The increasing demand for versatile applications in soft electronics has stimulated the exploration of advanced fabrication technologies. These techniques leverage the exceptional properties of new materials along with innovative structural designs to achieve flexible and stretchable electronic devices endowed with advantageous characteristics.