The main causes of chest pain in children include the following: firstly, symptoms caused by children suffering from intercostal neuralgia, children with inflammation of intercostal nerves will cause chest pain, and the pain worsens with breathing. Secondly, the symptoms are caused by lobaric pneumonia, which is common in older children. Children with lobaric pneumonia may suffer from chest pain and even cough up red sticky sputum, which can be diagnosed by chest X-ray. Lastly, myocardial ischemia in children is common in children who are very obese and have high blood lipids. After exercise, children sometimes experience temporary chest pains.