Appendicitis is the inflammation of the vermiform appendix. Acute appendictis is the most common surgical emergency, and the most frequent cause of abdominal pain. It is considered that between 7 to 12% of the world population will develop the disease in some ciurcumstances of their lifes, being more frequent during the second and third decades. The aim of this study was to evaluate the comlications derivated from the delay in the anagement of the patients with this complaint. Usually, the signs and symptoms are frequently typical and the diagnosis quickly made. However, the classic syndrome may not be evident and the correct diagnosis may be obscure, in whom a delay in diagnosis can result in a lifebreatening situation. Inflammation of the appendix usually results from the obstruction of the appendiceal lumen. The diagnosis of appendicitis depends primarily on the history and physical findings, but confirmation of the diagnosis usually requires appropriate laboratory, radiographic or endoscopic studies. Pain is usually the first simptom. vomiting usually develops. Acute appendicitis should always be included in the differential diagnosis of abdominal pain. Low-grade fewer is usual. The most characteristic sign is point tenderness at Mc-Burney's pint, which is located one third of the distance from the anterior-superior iliac spine to the umbilicus.We present a retrospective analysis, descriptive and observational. In our study the Alvarado score was empliye. The complications observed are detailed, and the results obtained are commented