Adenopathy with localized papillary proliferation of the ductal epithelium is generally considered to be ductal epithelial hyperplasia of the breast and requires aggressive treatment if necessary. Ductal epithelial hyperplasia is a pathological concept, which means that when breast tissue is excised or puncture biopsied, a specialist will look at the specific situation under a microscope to make a pathological diagnosis, although ductal epithelial hyperplasia tends to be mostly benign. Ductal epithelial hyperplasia can be categorized into common ductal epithelial hyperplasia and atypical ductal epithelial hyperplasia. If it belongs to atypical ductal epithelial hyperplasia, especially in middle-aged women, it needs to be treated according to the doctor’s advice or reviewed regularly to avoid causing breast cancer. Therefore, for ductal epithelial hyperplasia, it is necessary for the examinee to receive active treatment under the guidance of a specialist, and not to be negligent in order to avoid delays.