Invasive carcinoma of breast usually needs surgical treatment, radiotherapy, endocrine therapy, targeted drug therapy, immune drug therapy and so on. 1. Surgery: If the invasive breast cancer is in early stage and the infiltration range is small, partial mastectomy can be performed. However, if the scope of infiltration is extensive, total mastectomy is needed. When performing mastectomy, the lymph nodes in axilla and chest wall that may have metastasis should be checked and cleared to ensure the cancer cells are completely removed. 2. Radiotherapy: after surgery, patients need to undergo radiotherapy according to their conditions, and patients who are not suitable for surgery can also use radiotherapy to slow down the progress of the disease, commonly used drugs include anthracycline and paclitaxel. 3. Endocrine therapy: after the end of chemotherapy, patients also need to take endocrine drugs under the guidance of doctors, such as tamoxifen, etc., in order to reduce the recurrence and metastasis after surgery. 4. Targeted drugs: Applicable to HER-2 positive breast cancer patients, commonly used drugs include trastuzumab and so on. 5. Immune drugs: can be used for patients with triple-negative breast cancer, commonly used drugs are atilizumab, etc. When patients have invasive breast cancer, they must consult the doctor in time to avoid delay.