The compression of the lateral femoral nerve can be caused by a number of factors:
Intensive sport activity involving the abdominal musculature (gymnastics, baseball, soccer, weight-lifting)
Trauma (seat belt compression of lower abdomen in car accidents)
Standing, walking or cycling for prolonged periods of time
Tumor growths of the pelvic area compressing the nerve
Neuroma or benign tumors of the nerves
Diabetes neuropathy (affecting several nerves)