Conclusion: Breast fiberoptic ductoscopy can confirm etiological factors and locate the site of nipple discharge, and is effect in diagnosis of early breast cancer.

• 结论：纤维乳管内视镜能够更准确、直观明确乳头溢液性乳腺疾病的病因、病变范围及部位，提高了早期乳腺癌的检出率。