The muscles at the back of the calf feel cold may be due to the following reasons: 1, the living and working environment is relatively poor, often subjected to cold and damp or cold wind and other stimuli will make the calf area to feel the wind, cold and dampness, thus causing the calf of the blood circulation is impaired, lower limb venous return is blocked, there may be a symptom of the calf is cold; there may also be a calf bloating, soreness, pain, and other symptoms of discomfort. 2, Patients suffering from spinal stenosis may also have the feeling of cold calves, but most of the patients with lumbar and leg pain and walking with a limp as the main manifestation, part of the patients because of lumbar vertebrae have been traumatized and lead to osteophytes compression of the spinal cord, but also because of inflammation and other reasons; serious patients may also appear incontinence and other serious symptoms. 3, some of the vascular disease of the lower limbs, such as phlebitis, Varicose veins and other symptoms of cold calves can also occur.