This textbook presents a brief version of the subject with clinical photographs and illustrations and highlights important topics, such as chapters on lesions and immunological diseases. Chapters on essential topics like Investigations in dentistry, red and white lesions, Lasers, temporomandibular joint disorders, etc., have been corroborated. Endeavors made to make the text as student-friendly as possible while earning ample knowledge. A thorough reading is recommended for studying the subject in greater depth and detail. Efforts have been taken to make learning Oral medicine exhilarating and knowledgeable.