Patients with cold feet and ankles are commonly caused by severe degenerative changes, lower limb arterial plaque formation and vascular stenosis, as follows: First, severe degenerative changes: severe degenerative changes occur in the ankle joint, forming osteoarthritis of the ankle joint. Chronic inflammation exists in the patient’s ankle joint, which will stimulate the surrounding blood circulation and lead to blood circulation dysfunction, thus causing insufficient local blood supply, and the patient will Patients will show symptoms of cold ankle joints. Taking X-ray and MRI, it will be found that the joint space is narrowed and the articular cartilage is extensively peeled off, and patients will have pain and limited movement of the ankle joints. Secondly, arterial plaque formation and vascular stenosis in the lower limbs: arterial plaque formation and vascular stenosis in the lower limbs can cause a decrease in blood supply to the lower limbs, and the ankle is the end of the limb, so the degree of vascular supply will be significantly worse, so there will be clinical symptoms of cold ankle joints, accompanied by a drop in skin temperature.