The book is a manual for the diagnosis and treatment of acute apevdshga ta. The clinical symptoms of acute appendicitis are described in detail with great illustrative support and captions, which facilitates the perception and memorization of the material. In the section of differential diagnosis, the main options that arose in the practical activities of doctors of various specialties are given . Disclosed methods of modern laboratory and instrumental diagnosis of acute appendicitis, including ultrasound and laparoscopy . The section of surgical treatment of acute appendicitis is presented and illustrated in the style of surgical atlas . Modern principles of treatment of local and common peritonitis, postoperative complications, including anaerobic neclostrpdial wound infection. Features of diagnosis and treatment of acute appendicitis in children are described in detail. The book is designed for students of medical universities, residents, graduate students, practical doctors .