Hi. Wife Just Happened To Notice Some Areas In Left

Hi. wife just happened to notice some areas in left breast , of hard tissue. No pain but can feel it there when palpated.Does not seem to be uniform in shape and seems to be random around the circumference of the nipple. Upper , lower , etc. No family history of breast cancer. White female. The lumps seemed to appear quickly within the last 5-7 days or so. Please advise.THANK YOU. Bryan at YYYY@YYYY