Trocar-site hernia is a serious complication in laparoscopic surgery with incidence of 1% to 2%. Trocar size, particularly larger than 5-mm, leaving fascial defect open and inserting site of the large trocar may be related to the problem among several factors regarding the technique and the host. It is crucial to consider hernia through trocar site and to perform further intervention when suspected clinical findings due to obstruction of small bowel or omentum such as pain and distension are detected. In this case, a 44-year-old woman who underwent an uncomplicated laparoscopic hysterectomy but was diagnosed with small bowel herniated through right 10-mm trocar site at postoperative third day is reported. It seems to be reasonable to avoid using lower quadrant sites for larger trocars and close all trocar sites in order to prevent the trocar-site hernias which can cause serious morbidity and mortality so that need prompt diagnosis and intervention.