Growing pains are pains that occur around the joints and on the anterior side of the lower leg in children between the ages of 3 and 12. There is no redness, swelling, or pressure in the local tissues, and movement is normal. The pain occurs around dusk and is aggravated by exercise and fatigue. One of the causes of growing pains is due to the rapid growth of bones, while its surrounding nerves, tendons and muscles grow relatively slowly, thus producing pulling pain. Secondly, when young children start to walk the tibia of the lower leg is more curved, in order to offset the tibial inward curvature caused by the supporting force line is not correct, the human body will be compensated for a certain degree of knee joint valgus. And a few children tibial inward bending and knee joint valgus not corrected in time, in order to maintain joint stability, leg muscles must remain tense, so the pain. Third, the child’s activity during the day, a long time, will inevitably cause the accumulation of acidic metabolites, will also cause muscle fatigue and pain. Some children are deficient in calcium during this time, but calcium supplements do not help with growing pain relief. Because growing pains are not in the bone marrow, but soft tissue fatigue. And young children’s change absorption should be obtained mainly through food, such as milk, bone broth, green vegetables, shrimp shellfish and so on. The effect of dietary supplements is far better than medicinal supplements. Too much calcium preparation, young children are not well absorbed. The most important thing in the treatment of pediatric growing pains is timely rest. Young children such as knee or calf discomfort, do not force them to do more exercise, parents can use hot water to soak the child’s feet and calves before going to bed every day. However, when children are tired, they should be encouraged to do more exercise to build muscle strength and promote normal correction of tibial deformity. When the pain of the child is heavy, local massage can be used, painkillers can be taken, and vitamin C can also be taken appropriately.After proper rest, exercise, massage and medication, pediatric growing pains will be cured very soon, and will not produce sequelae or affect the normal growth and development of the child.