Rib neuralgia in a 14-year-old child that gets better and hurts again after a few days is usually caused by rib fractures, costochondritis and other diseases. 1. Rib fracture: it may be caused by rib fracture, which usually results in chest pain, costal neuralgia, and pain aggravated by deep breathing and coughing. 2. costochondritis: costochondritis is an inflammatory reaction that occurs in the cartilage at the junction of the sternum and the ribs, which usually manifests itself as swelling of the anterior chest wall, pain, costochondral neuralgia and other symptoms, and the symptoms may worsen with activity, so that the child’s costochondral neuralgia is well, and then it hurts again in a few days. If the 14-year-old child rib neuralgia well, after a few days again pain may also be related to other causes, it is recommended to promptly go to the hospital to identify the cause of the disease, and actively cooperate with the doctor treatment.