Calf belly soreness can not sleep at night may be overworked, muscle strain, lumbar spine disease and other causes. 1. Overexertion: long-term standing, walking, running and other sports can lead to a large number of calf muscle lactic acid accumulation, then the phenomenon of calf belly soreness will occur. 2. Muscle strain: when muscle strain during exercise, due to partial damage to the muscle fiber tissue, can lead to the symptoms of calf tummy soreness and swelling. 3. Lumbar spine disease: lumbar disc herniation, lumbar spinal stenosis and other lumbar spine disease caused by nerve root compression, can appear the symptoms of calf belly soreness. There are many other causes of calf belly soreness, rest can not be relieved after the proposal to go to the regular hospital in a timely manner, a clear cause, standardized treatment under the guidance of the doctor.