Standing for a long time will have pain symptoms in the calf, common calf muscle strain, lumbar spine disease, calf trauma several causes, as follows: a, calf muscle strain: long time standing will make calf muscle strain, the patient will have sore symptoms, if the patient is an elderly patient, the pain symptoms are more obvious. Second, lumbar spine disease: lumbar disc herniation or lumbar spinal stenosis and other diseases, stimulation and compression of nerves, so that the calf dominant area of radioactive pain symptoms, while the patient will have lumbar pain and lumbar spine activity restrictions. Through lumbar spine CT examination or nuclear magnetic scan, the lesion site and the degree of lesion will be found. Third, calf trauma: during the recovery period of calf trauma, prolonged standing can also induce pain symptoms, and pain in the calf after prolonged standing should be selected according to the corresponding examination methods and treatment modalities for different etiologies, which can enable clinical symptoms to be controlled quickly.