The main causes of arm and leg pain in children usually include trauma and growing pains. If a child has an accidental bump or sprain, it may cause pain in the arms and legs, but pain caused by trauma usually has a clear history of trauma. Secondly, faster growth may also lead to pain in the arms and legs, as the speed of bone growth exceeds the speed of the peripheral nerves, so there will be symptoms of pain, especially in the lower limbs and knee joints. In short, during the child’s growth and development, it is important to consume more nutritious food, pay attention to the nutritional balance with more fruits and vegetables, in order to avoid the occurrence of growing pains. Children’s hand and foot pain may also have other causes, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.