It is necessary to determine the size of the tumor, the presence of lymph node metastasis, and the presence of distant metastasis in order to determine whether it is early invasive breast cancer. When breast cancer occurs, if the cancer cells are confined to the epithelium, it is called non-invasive cancer, and if the cancer cells penetrate the basement membrane underneath the epithelium, it is called invasive breast cancer. If the cancer cells penetrate the basement membrane below the epithelium, it is called invasive breast cancer. If the size of the tumor is within 2cm, there is no lymph node metastasis, and there is no distant metastasis (liver metastasis, bone metastasis, etc.), it is clinically known as early stage invasive breast cancer. Breast cancer is a common malignant tumor, which needs early diagnosis and early treatment. If it is early breast cancer, the cure rate is high and the survival time is long, while if it is middle or late breast cancer, the cure rate is low and the survival time is short. It is suggested that breast cancer patients should consult regular hospitals in time and standardize the treatment under the guidance of doctors.