Microdochectomy is a surgical procedure indicated in cases of nipple discharge, which denotes the presence of a bloody, serous, opalescent, brown, or black discharge from the nipple. The surgery is preceded by a detailed diagnostic workup (breast ultrasound, mammography, cytological analysis of the discharge, and galactography) to detect the intraductal process. Microdochectomy is performed under general anesthesia with the use of surgical loupes. First the affected milk duct is dilated by special cannulas and injected with dye (methylene blue) to identify the entire ductal system draining into the marked collecting or main duct, upon which access to the glandular tissue is gained by a periareolar incision, and the entire dyed segment is removed and sent for pathohistological analysis. The recovery period after this procedure takes approximately 7 to 10 days.