After surgery for ductal carcinoma in situ, recurrence and metastasis are not easy to occur, but there is a certain chance of recurrence, so patients need to do regular review according to their own recovery and disease development. Ductal carcinoma in situ is a kind of early malignant tumor, which occurs in breast ducts, and the lesion is often limited to the inside of the ducts. Generally speaking, ductal carcinoma in situ can be considered to be localized lesion excision, that is, breast-conserving surgery can be done, and generally there is no need to carry out axillary lymph node dissection, which is negative in most of the cases. After the surgery, the patient’s breast shape is not changed too much, which can have less impact on the psychological aspect of the patient. Intraductal carcinoma in situ can be detected by immunohistochemistry. If her and hpr are positive, endocrine therapy can be performed under the guidance of the doctor, which can effectively inhibit the development of the disease and prevent recurrence. If the patient has medical needs, please make sure to go to a regular medical institution.