Abstract: Objective: To explore the value of fiberoptic ductoscopy in diagnosing and treating bilateral multipleductal nipple discharge. Methods: Twenty-nine patients with bilateral, multiple ductal nipple discharge were examined byfiberoptic ductoscopy. Those patients with intraductal papilloma were treated through surgery and those with galactostasia,mammary ductectasia and obstructive galactophoritis were treated by fiberoptic ductoscopy. Results: Of the 29 cases, therewere 11 cases with intraductal papilloma (37.93%). Of the 11 patients with bloody nipple discharge, 9 were diagnosed asintraductal papilloma. Of the 18 patients with non-bloody nipple discharge, 2 were diagnosed as intraductal papilloma.All lesions were resected and 88.89% of the preoperative diagnosis were consistent with the postoperative pathological di-agnosis. Conclusion: Fiberoptic ductoscopy has many advantages such as direct-viewing and accuracy. Most of the pa-tients with galactostasia or mammarv duct ectasia or obstructive galactophoritis can be cured by fiberoptic ductoscopy.