At present, there are many treatment methods for breast cancer, including surgery, chemotherapy, endocrine therapy, targeted therapy and immunotherapy, etc. There are more methods and the treatment effect is very good, and for most breast cancer patients, the 5-year survival rate is higher. Of course, unless the tumor is very late, very large and has developed lung metastasis, bone metastasis, etc., the survival rate may be lower. If a patient finds a mass or lump in the breast and enlarged lymph nodes in the armpit or under the collarbone, it is usually highly suspected to be caused by breast cancer, and for most patients, it can be surgically removed, that is, radical breast cancer surgery is performed. The next treatment plan will be decided based on the pathological stage and immunohistochemistry results after surgery.