Growing pains are most common in children between the ages of 3 and 12 years, and the symptoms of growing pains are characterized by pain in the lower extremities, muscular pain, and intermittent episodes. 1. Lower extremity pain: common pain sites are usually outside the joints, mostly around the knee, followed by the hip and upper femur, most typically bilateral pain, one-sided pain is relatively rare. 2. Muscular pain: It is mainly muscle pain, and there is no redness, swelling or heat in the painful area. Pressing on the leg muscles will not cause pain and will not affect the walking function. 3. Intermittent attacks: Each pain attack lasts for a period of time and then disappears, after which it will continue to attack again, and mostly at night. It is recommended to supplement calcium and other trace elements, pay more attention to rest and do not overdo activities.