After diagnosing breast cancer at early stage, the main preventive measures are to prevent recurrence and metastasis of breast cancer, and the first step is to carry out standardized diagnosis and treatment for breast cancer. For early breast cancer patients, if there is a chance of surgical resection, standardized surgical resection must be carried out, and after the surgery, according to the patients' relevant high-risk factors and physical status, the postoperative adjuvant treatment should be selected, such as adjuvant chemotherapy, adjuvant radiotherapy, molecular targeting drug therapy and endocrine drug therapy, and so on.
Then, it is necessary to choose the treatment according to the patients' pathological conditions and physical status, and to carry out sufficient quantity and course of treatment to minimize the chance of tumor recurrence and metastasis. At the same time, it is recommended that breast cancer patients should have a healthy life and diet, abstain from alcohol, eat more fresh vegetables and fruits, supplement some high quality proteins, exercise properly, and maintain a healthy body weight, so as to reduce the chances of tumor recurrence and metastasis.