In the clinical causes of thigh numbness, soreness, mainly due to lumbar spine disease, thigh muscle strain, lateral femoral neuritis, as follows: First, lumbar spine disease: such as lumbar disc herniation, lumbar spinal stenosis, lumbar spinal slippage and other diseases, the protruding discs on the spinal cord nerve root compression stimulation, can be caused by the innervated region of the thighs numbness, soreness and other symptoms. Second, thigh muscle strain: thigh muscle strain caused by overwork, pulling and other stimuli, local aseptic inflammation can be produced, which can lead to thigh numbness, pain and other symptoms. Third, lateral femoral dermal neuritis: dermal nerves can produce symptoms such as numbness and soreness of the lateral thigh after being stimulated by pressure.