外伤性肠扭转的鉴定在实际检案中遇到的很少 ,外伤性乙状结肠扭转更未见有报道。本文报告一例 ,结合文献 ,就其发生机制及法医学鉴定作一分析探讨。案　例某男 ,36岁 ,农民。某日因琐事发生争执 ,被人击伤左下腹部 ,当即疼痛难忍 ,送医院治疗两天 ,出现高度腹胀 ,以左下腹为甚 Traumatic intestinal torsion identification encountered in the actual seizure of the few cases of traumatic sigmoid colon torsion has not been reported. This article reports an example, combined with the literature, to analyze its mechanism and forensic identification for an analysis. Case a male, 36 years old, farmer. One day due to trivial disputes, was wounded left lower abdomen, immediately unbearable pain, sent to the hospital for two days, there was a high degree of abdominal distention, to the lower left abdomen