Growing pains usually refers to the feeling of muscle pain around the bones and joints of the body, occurring in children aged 3-12 years old, commonly manifested as muscle pain in the lower limbs, mostly occurring at night, and the pain exists in a certain degree of intermittency. The pain site usually does not appear red, swollen, fever symptoms, pressure will not lead to pain aggravation, may affect children’s normal sleep, but generally will not have an impact on children’s normal activities.1, lower limb muscle pain: common around the knee joint pain, hip, upper end of the femur, groin area may also appear. Bilateral pain is common in areas other than the joints, and unilateral pain may occur in a small number of children. 2. Nighttime pain: Nighttime is a common time for growing pains to occur. Children may also experience growing pains during the day, but children are more active during the day and may be distracted from the pain; 3. Intermittent pain: There is a certain amount of intermittency in the onset of growing pains, and growing pains may occur on several consecutive nights before the pain disappears. Growing pains are mostly related to children’s rapid growth and development, mainly caused by the incongruity between the rapid growth of bone and the speed of development of muscles and other soft tissues. During rapid growth, children may have unsteady gait and uneven stress on the lower limbs, which can easily trigger growing pains; lack of vitamin D and calcium can also lead to growing pains; children’s high activity level during the day may lead to muscle fatigue, which can also easily cause growing pains at night. Parents can take their children to the orthopedic department of the hospital for examination to observe whether the children have problems such as improper posture and correct them in time. Daily attention should be paid to children’s nutritional intake, under the guidance of the doctor, appropriate amount of supplemental calcium, vitamin D, etc., to supply the body with the necessary growth and development. During the day, you can arrange for children to exercise properly to avoid excessive exercise resulting in muscle fatigue.