A mere incision of a mammary duct (without excision) is called microdochotomy.
[1] Microdochectomy is a standard treatment of in case there is nipple discharge which stems from a single duct.
[2] There are preliminary indications that if ductoscopy and close follow-up are performed, in some cases microdochectomy may not be necessary despite bloody nipple discharge.
[5] Galactography may be used to investigate the condition of the mammary duct system before the intervention.
[5] Possible complications of the procedure include temporary or permanent alteration to the shape, sensation or pigmentation of the nipple, such as a minor change to the contour of the nipple-areola region.