The road is not long appeared calf belly and pain and tired, may have participated in physical labor or strenuous exercise caused by, in addition to consider and calf thrombosis and lumbar spinal stenosis and other diseases related. For a long time do not participate in exercise crowd, if occasionally participate in a physical labor or running and other strenuous exercise, will cause calf muscle fatigue appear walking calf pain and tired feeling. Calf vein thrombosis, intermuscular thrombosis can cause venous blood return obstacle, when walking venous blood can not return in time will be stagnant in the calf muscle gap, cause walking not long will be pain and swelling fatigue symptoms, at the same time may also appear in the calf obvious swelling. Lumbar spinal stenosis can compress the nerves that innervate the calf area and cause pain. When the nerves are repeatedly stimulated while walking, pain, fatigue, weakness and other sensations will occur, and it is necessary to sit down and rest for a period of time to be able to relieve. There are usually no symptoms of calf swelling. There are other reasons for walking not long calf pain and fatigue, such as vascular occlusive vasculitis, etc., if recurring, it is recommended to go to the hospital as soon as possible to see a doctor for examination, through the examination of the cause of the cause of the disease to follow the doctor’s instructions for targeted treatment.