Answer by  
                                                                                          StarOne (941)
                                                            
                          
                          
                                                          The pain could be caused by hormone changes, injury, infection or ,in rare cases, cancer. Talk to your doctor about the pain. A mammogram can be run as well as a sonogram or biopsy. These procedures will help eliminate any serious causes of your pain. Depending on the cause medication may be prescribed or even a more supportive bra.