Pain in the upper part of the chest breast can be considered as one of the following possibilities: a. It may be due to pain in the sternum due to cold. Second, the pain may be caused by recent excessive exercise, resulting in strain on the sternal rib joints. The pain may be caused by breast enlargement, which is mostly related to endocrine disorders and breast lumps, especially before the onset of menstruation, and can be relieved after the onset of menstruation. The pain may be caused by mastitis, which mostly occurs in women who are breastfeeding, and there will be pain in the breast, and if the local inflammation has pussified, there will be more serious throbbing pain. V. It may also be caused by hyperplastic lesions, breast cancer or trauma to the chest. It is recommended that patients go to the relevant departments of the hospital to improve the examination and then do further treatment according to the examination results.