Essentials of ENT: Diagnosis and Treatment is a comprehensive and accessible guide designed for medical students, general practitioners, and budding otorhinolaryngologists seeking a solid foundation in the diagnosis and management of ear, nose, and throat (ENT) disorders. The book systematically covers the core topics in ENT, offering a clear and concise understanding of both common and critical conditions affecting the head and neck region. Understanding the essentials of ENT diagnosis and treatment is fundamental for managing a wide spectrum of diseases that affect a patient’s ability to hear, speak, breathe, and maintain balance. From the simple earache to complex head and neck malignancies, ENT encompasses a diverse and intricate field of medicine. With continuous technological advances and evolving treatment paradigms, the future of ENT promises enhanced diagnostic precision, minimally invasive therapies, and improved quality of life for patients across all age groups. The content covers a wide range of conditions including otitis media, hearing loss, rhinosinusitis, nasal polyps, tonsillitis, voice disorders, vertigo, head and neck tumours, sleep apnea, and more. Emphasis is placed on evidence-based treatment strategies ranging from pharmacological management and rehabilitation to surgical procedures and follow-up care. This book is especially valuable for its clarity in explaining complex concepts in simple terms and its focus on real-world clinical application. Whether used as a quick reference or as a study companion for exams, Essentials of ENT ensures that readers gain confidence in identifying symptoms, conducting examinations, and making informed treatment decisions.