Cramp-like pain in the calf when walking, the common causes are as follows: 1, acute injury or chronic strain injury to the muscles of the calf, resulting in localized inflammatory reaction, in the activities of the inflammatory stimulation of the pain, resulting in corresponding symptoms; 2, commonly seen in the calf of poor blood circulation, such as vascular disease or local trauma, resulting in hematoma compression, limiting the Blood circulation, muscle ischemia, hypoxia, ischemia, hypoxia aggravated during activities, resulting in cramp-like pain; 3, can be seen in the lumbar spinal stenosis, due to lumbar spinal stenosis leads to lower limb nerve stimulation and compression, when walking will appear cramp-like pain in the calf, these are more common causes; 4, local cold, calcium deficiency, etc., can also lead to corresponding symptoms. Symptoms appear, it is recommended that patients go to the hospital for a detailed examination, a clear diagnosis.