Pain medicine focuses on the assessment, diagnosis, and management of acute, chronic, and cancer-related pain. It examines the biological, neurological, psychological, and social factors that contribute to pain perception and persistence. The field spans musculoskeletal pain, neuropathic pain, inflammatory and postoperative pain, headache disorders, and complex regional pain syndromes. Using pharmacologic therapies, interventional procedures, physical rehabilitation, and behavioral approaches, pain medicine aims to relieve suffering, improve function, and enhance quality of life. Integrating insights from neurology, anesthesiology, rheumatology, psychiatry, and rehabilitation, it provides comprehensive, multidisciplinary care for one of the most prevalent health challenges worldwide.