If you are still in puberty, there is a chest pain may indicate that it is still developing, but there may be other causes of disease. 1. Possible development: during puberty, with the secretion of estrogen in the body, the breast will have pain, itching and other symptoms, which is a normal development of the performance. 2. other reasons: for example, before menstruation may appear chest pain symptoms, in addition to the breast by external force extrusion, or breast hyperplasia, mastitis and other diseases, will also cause chest pain performance. So simply a symptom is not able to determine whether it is still developing, if the pain persists, you need to go to the hospital in time to check, there are abnormal symptoms, you should actively take treatment measures.