Whether chemotherapy is needed after total excision of breast cancer needs to be judged according to the patient’s condition. If the age of the tumor is <35 years old, the primary foci is >2cm, the metastatic lymph nodes are positive, the vascular cancer embolus is positive and other high-risk factors, it is recommended that postoperative chemotherapy is needed, which can be used such as cyclophosphamide injection and doxorubicin injection, and other chemotherapeutic drugs. Breast cancer patients should decide whether they need postoperative chemotherapy according to their specific conditions after total excision surgery. Generally speaking, if the tumor of breast cancer patients is less than 2cm in diameter and there is no lymph node metastasis, they do not need chemotherapy after surgery. If the tumor of a breast cancer patient is larger than 2 cm and has lymph node metastasis, it is a more serious situation and requires chemotherapy after total excision. Breast cancer patients can use chemotherapy drugs such as cyclophosphamide injection, doxorubicin injection, epirubicin injection, docetaxel injection, fluorouracil injection and other chemotherapy drugs as prescribed by doctors. Whether chemotherapy is needed after total excision surgery for breast cancer should consult the doctor and take specific treatment measures as prescribed by the doctor. Please strictly follow the doctor’s prescription for medication, and do not use medication on your own.