Generally, children aged 5-12 years old, after playing for a day, tell their parents about leg pain at night before going to bed, especially around the knee joint, young children even cry, give touch or hot compress, even after painkillers, the symptoms disappear, but some days will be repeated, the film is normal, especially in the pain of recent symptoms of respiratory infection, this situation can generally be diagnosed as growing pains, growing pains is a common phenomenon in school-age Growing pain is a common phenomenon in school-age children, parents should not worry too much. General treatment: firstly, rest, forbid strenuous activities during the painful period, even bed rest; secondly, local hot compresses can improve the symptoms; thirdly, a small amount of oral calcium can be taken; fourthly, if the pain has symptoms of respiratory infection recently, anti-infection treatment can be given.