Acute appendicitis is among the three most frequent surgical diseases. The lifetime likelihood of developing acute appendicitis is around 7%. The incidence of acute appendicitis reduces with age after adolescence. Several studies evaluated the relevance of the current scores to the general population, mostly children, but a limited number of studies have studied the elderly population. This study aims to assess the clinical effectiveness of the new diagnostic score for the elderly population in comparison to both the Alvarado score and the non-standardized score.