If a patient has anterior thigh pain and it is confirmed to be caused by a problem in the lumbar spine, it is often caused by a herniated disc in the lumbar 3/4 vertebrae, where the lesion is located on the disc between the 3rd and 4th lumbar vertebrae, and the disc in this area is often ruptured and the nucleus pulposus protrudes due to trauma or degeneration of the lumbar spine. The herniated nucleus pulposus may compress the lumbar 4 nerve roots and cause radiated pain, numbness, weakness and other symptoms in the area of the femoral nerve distribution, that is, the front of the thigh, which is relatively rare clinically because this disease is a high lumbar disc herniation. Patients tend to have low lumbar disc herniation when the degeneration of the lumbar spine occurs, but once the high lumbar disc herniation occurs, the symptoms are often heavy and the lesion progresses relatively quickly, requiring timely treatment.