由于损伤引起髂肌鞘内血肿导致股神经麻痹比较少见。现报告1例如下。患者男,22岁,学生。于1985年10月上体育课作突然急骤下蹲动作后出现右下腹疼痛和右髋屈曲,不敢伸直。当晚出现右大腿前侧麻木。于某院诊断为右髂窝脓肿,治疗月余疼痛明显减轻,肿块也变小。但右大腿仍麻木,不能站立和行走,于1985年11月来我院住院。本人及家族无出血史。检查:一般情况良好,皮肤粘膜无出血点。右髋为半屈曲位,右腹股沟韧带上下无淤斑或隆起,右大腿 Due to injury caused by iliac muscle sheath hematoma caused by nerve paralysis is relatively rare. One report is as follows. Male patient, 22 years old, student. In October 1985 on the sudden ups and downs of physical education after the squatting action right lower quadrant pain and right hip flexion, afraid to straighten. Night numbness appeared on the front side of the right thigh. In a hospital diagnosis of right iliac fossa abscess, the treatment of pain was significantly reduced, the lumps also become smaller. But the right thigh is still numb, can not stand and walk in November 1985 to our hospital. I and family history of bleeding. Check: generally good, skin and mucous membrane without bleeding point. The right hip is a half-flexion, the right groin ligament up and down without ecchymosis or uplift, the right thigh