This monograph addresses one of the most pressing issues in modern medicine: the diagnosis and treatment of intestinal tumors. It explores clinical and specialized diagnostic methods, as well as therapeutic strategies, tailored to the anatomical and physiological features of different sections of the intestine, the morphological characteristics of tumors, their extent of spread, and disease stage. Drawing on extensive clinical experience, the book provides detailed descriptions of the presentation of both benign and malignant tumors located in various parts of the intestine. It discusses diagnostic techniques—both clinical and specialized—and evaluates their effectiveness, emphasizing the principles of early detection and differential diagnosis. The publication thoroughly covers treatment approaches for intestinal tumors, including indications for surgery, preoperative preparation, postoperative care, and the rationale behind the choice of surgical procedures—whether radical or palliative. It also addresses surgical techniques, postoperative complications, and adjuvant therapies. Designed for a broad medical audience, this book is an essential resource for surgeons, oncologists, and gastroenterologists seeking to deepen their understanding of intestinal tumor management.