Infiltrating cancer refers to the tendency of cancer cells to break through the cell membrane cytoplasm and develop into the surrounding tissues. Infiltrating carcinoma indicates that the tumor is in a more active stage or relatively high malignant degree, which requires extended radical resection. In addition, there may be metastatic lymph nodes around the invasive cancer, which is definitely less effective than other in situ cancers, but surgical cure can be pursued in early stage. For the more common invasive carcinoma of the breast, a radical mastectomy with axillary lymph node dissection can be considered, followed by a combination of radiotherapy, endocrine therapy and targeted drug therapy. Cancer is also a systemic disease, although there are local infiltrative manifestations, but it is better to do comprehensive treatment.