Radiating pain in the lateral thigh is more common in the clinic for lateral femoral cutaneous neuritis and lateral femoral cutaneous nerve entrapment syndrome, which need to improve the auxiliary examination in order to clarify the etiology. 1. Lateral femoral cutaneous neuritis: it is mainly due to the compression of the path of the lateral femoral cutaneous nerve, such as lumbar intervertebral disc herniation, pelvic tumor, inguinal hernia, and pregnancy, etc. It can also be seen in trauma and infection, such as pelvic inflammatory disease, postherpetic herpes, etc., and the invasion of the lateral femoral cutaneous nerve can cause the radiating pain in the lateral thigh. 2. Lateral femoral cutaneous nerve compression syndrome: mainly seen in improper position, strenuous activities, the lateral femoral nerve is pulled, squeezed, etc., causing compression of the nerve; when there is a tumor in the pelvis, fracture, etc., it can compress the lateral femoral cutaneous nerve; surgery and other scar tissues can compress the lateral femoral cutaneous nerve, which can cause sensory abnormalities in the outer thigh and radiating pain when it is compressed. It is recommended that patients should go to the hospital in time if they have any discomfort, in order to clarify the condition and to be given appropriate treatment measures by professional physicians, so as not to be negligent, so as not to delay the condition.