Hidden pain under the right breast, generally consider the following reasons: 1, breast cancer: hidden pain under the right breast, be alert to the pain caused by breast cancer. Therefore, it is necessary to do local ultrasound, molybdenum target, or surgeon’s palpation, to further exclude the localized vague pain caused by breast cancer.2, thoracic and pulmonary diseases: the right side of the lower part of the breast can be the right side of the lungs, pleura of the disease caused by the localized pain, it is necessary to do chest CT, to exclude the right side of the lungs and the substantive foci of the disease produced by the pain.3, other diseases: the right side of the lower part of the breast can be the abdominal cavity organ disease The pain can be caused by diseases of the abdominal organs, such as liver disease, gallbladder disease, pancreatic disease, right kidney disease, ureteral disease, which can lead to vague pain under the right breast, and lumbar muscle strain can also lead to. If necessary, please ask your doctor to help you do a series of tests, one by one, to rule out all kinds of substantial lesions caused by localized pain.