This book examines how language shapes healthcare through interdisciplinary research in communication, terminology, medical translation, interpreting, and LSP (Languages for Specific Purposes). This volume brings together international experts to explore how linguistic practices impact patient safety, clinical outcomes, digital health, and intercultural care. Addressing both written and spoken communication across diverse healthcare settings, it offers evidence-based insights for improving documentation, training, and patient understanding. A key reference for researchers, healthcare professionals, and educators, this volume highlights the role of language in enhancing interdisciplinary collaboration and advancing patient-centered care. As the first volume in the Semmelweis Medical Linguistics Investigations series, it sets the foundation for future research at the intersection of language and medicine.