Children’s leg cramps and foot pain may be caused by calcium deficiency. It is recommended to supplement calcium appropriately and pay attention to local warmth to prevent catching a cold. When cramps occur, it is advisable to straighten the legs to alleviate the pain. If symptoms are severe, it is recommended to go to a local regular hospital for specialized examination and diagnosis for targeted treatment. In addition, newborn asphyxia refers to the condition where a newborn has weak or no breathing due to hypoxia at birth, accompanied by symptoms such as cyanosis, slow heart rate, poor or absent neurologic reflexes, which is one of the causes of perinatal infant mortality.