Early targeted drug therapy for breast cancer takes about a year. The most commonly used drugs for targeted therapy for breast cancer are trastuzumab and patuzumab, which are mainly given through the vein and are not an oral drug, with a treatment cycle of about one year. Clinical oral drugs commonly used pyrrolitinib, also need about one year of treatment time. Early targeted therapy for breast cancer, clinical generally need 18 treatment courses, each treatment cycle of about 21 days, before the treatment need to carry out the epidermal growth factor receptor test, the result is positive to carry out targeted therapy, through targeted therapy, can make the recurrence rate and metastasis rate reduced. For targeted therapy for early stage breast cancer patients, it is recommended to consult the breast surgery department or oncology department of regular hospitals.