The Russian language continues to play a central role in the medical sphere across many post-Soviet and multilingual regions, serving as a key medium for clinical communication, scientific exchange, academic training, and diagnostic standardization. This article explores the functional significance of Russian within modern medical practice, focusing on its contributions to medical education, interprofessional coordination, patient care, and international collaboration. Through descriptive analysis and synthesis of published data, this work highlights how Russian-language medical literature, clinical terminology, and educational resources remain foundational for healthcare professionals, particularly in regions where Russian serves as a shared professional language. At the educational level, Russian remains the language of instruction for a substantial portion of medical textbooks, clinical guidelines, and scientific materials used in training physicians, nurses, and allied healthcare workers. In clinical settings, the Russian language facilitates accurate documentation, interdisciplinary communication, and unified understanding of diagnostic protocols.