The sudden enlargement of breasts may be physiological or pathological, such as acute mastitis, breast enlargement, or breast development due to increased progesterone secretion during pregnancy, and breast enlargement within a short period of time, it is best to go to the hospital for mammography, hormone testing and other related examinations to find out the cause of enlargement. The doctor will also combine clinical symptoms, signs and test results to give a reasonable treatment plan, usually maintain a good and stable state of mind, a reasonable diet, and appropriate exercise to enhance the body’s immunity.