The child’s leg pain needs to be specifically analyzed according to different causes, four common causes: 1, trauma causes, the child will be accompanied by obvious trauma history, after the occurrence of the child should go to the hospital to do a film, if there is no obvious fracture symptoms, consider soft tissue injury, daily local hot compresses for the child can, blood circulation and blood stasis basically about ten days should be able to good 2, the night muscle spasm caused by pain Intense, consider the cause of calcium deficiency, check the trace elements, if calcium deficiency, timely supplementation of vitamin D to promote the absorption of calcium and calcium supplements, short-term can be quickly relieved. 3, growing pain: no cause of pain, paroxysmal, 3 to 5 days or every day, this muscle pain, the child’s growth process is unique, daily local heat to the child can relieve the disease. 4, synovitis: children with a history of colds, lameness, serious cases also tend to cause pain, pay attention to hot compresses, let him rest, basically two weeks later will be able to relieve, children in the process of growth and development, growing pain is very frequent, such growing pain will not affect his growth and development, in the child’s growth and development process, slowly will be able to improve, no special treatment. No special treatment is needed.