“…The benefits of ductoscopy in identifying the location and status of intraductal lesions, facilitating targeted surgical excision, have been reported in several studies . In Europe and the United States, surgical resection is usually performed immediately after mammary ductoscopy regardless of the ductoscopic findings . In Asia, some centers would like to select patients with negative or benign images upon ductoscopy under surveillance , but little information is known about the follow‐up of patients without surgery after ductoscopy for PND .…”