Coldness in the legs when the wind blows may be related to lumbar disc herniation, lower extremity vascular lesions and other reasons. Patients with lumbar disc herniation will have abnormal nerve function such as pain and numbness in the lower limbs, and nerve stimulation after exposure to cold will aggravate the condition, resulting in the symptom of coldness in the legs. Lower extremity vascular lesions such as lower extremity venous thrombosis, varicose veins, arteritis will cause lower extremity blood circulation to slow down, lower extremity wind will take away the heat from the body surface, resulting in capillary contraction. Due to the slowing down of blood circulation, it is not possible to bring the body heat through blood circulation in time, and the symptom of cold legs will appear. If there is lower limb neuropathy, after blowing the wind nerve stimulation, lower limb nerve symptoms aggravated, the symptom of cold will appear. It may also be related to cooler weather and underdressing. If your legs get cold when the wind blows, it is recommended that you go to the hospital for a medical checkup to determine the cause of the problem and then treat the cause of the problem.