Leg pain and foot numbness may be caused by lumbar intervertebral disc herniation, diabetic foot, arteriosclerosis occlusive disease of the lower limbs and other diseases. 1. Lumbar intervertebral disc herniation: it may be related to heredity, injury, inflammation stimulation and other factors, acute trauma, heavy physical labor and other factors can also induce the disease. Firstly, lumbar soreness and swelling will appear, and with the development of time, lumbar and leg pain will gradually appear, which may be accompanied by numbness of the lower limbs, fatigue and other symptoms. 2. Diabetic foot: It is one of the most serious chronic complications of diabetes, mainly caused by diabetic peripheral neuropathy, infection, trauma and other factors. The lower limbs will suffer from insufficient blood supply, which is mainly manifested as low skin temperature, pain, numbness and other symptoms. 3. Lower extremity atherosclerotic occlusive disease: the etiology is not clear, may be related to lipid metabolism disorders, hormones, hypertension and other factors. There may be symptoms such as coldness of the soles of the feet, numbness, pain in the lower limbs, and ulcers on the extremities. The causes of leg pain and numbness of the feet are more reasons, after excluding physiological factors, it is recommended to go to a regular hospital for consultation and examination, and standardize the treatment after clarifying the cause of the disease.