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目的：为了避免损伤髂腹下神经在阑尾切除术中要认真鉴别该神经；并确定手术切口方向和分离范围。方法：在５３例（男２９，女２４）成人的右侧腹部的标本上，对髂腹下神经进行了观测。结果：①髂腹下神经的行径和结构型式并非绝对恒定，其单支者占６２．３％，双支者占３．８％，该神经与髂腹股沟神经共干一段后分开者占２２．６％，与髂腹股沟神经全长共干者占１１．３％；②在髂前上棘内侧１～４０ｍｍ范围内髂腹下神经经过脐—棘线占９８．２％，在麦氏点外侧１０ｍｍ以外该神经经过脐—棘线占９２．７％；结论：当阑尾切除术选择麦氏点切口时，切口方向应与脐—棘线垂直，手术分离不宜在髂前上棘内侧１～４０ｍｍ范围内进行，亦不宜延伸到麦氏点外侧１０ｍｍ以外，否则损伤髂腹下神经的机会较多
OBJECTIVES: In order to avoid damage to the iliofemoral nerve, the nerve should be carefully identified during appendectomy and the direction and extent of surgical incision should be determined. Methods: The iliopapillary nerves were observed on specimens of the right abdomen of 53 (male 29, female 24) adults. Results: ① The behavior and structure of the ilioperitoneal nerve were not absolutely constant, with 62.3% in single branch and 3.8% in double branch. The nerve and common iliac groin nerve separated for a period of 22%. 6% and 11.3% of the total length of the iliovaginal nerve; ② in the range of 1 ~ 40mm in the anterior superior iliac spine, the iliopapillary nerve passed the umbilical cord of 98.2% 10mm beyond the nerve through the umbilical - spine accounted for 92.7%; Conclusion: When the appendectomy choice McNamara point incision, the incision should be perpendicular to the umbilical cord, surgical separation should not be in the anterior superior iliac spine 1 ~ 40mm Within the range, it is not appropriate to extend beyond the outer side of the wheat’s point 10mm, otherwise the chances of injury ilio-abdominal nerve more