Nipple discharge and mastitis in a non-lactating woman

Rule out a tumour of the breast by sufficient investigations in all cases with serous unilateral discharge or bloody discharge. Milky (greenish, brownish, or yellow) discharge or discharge from more than one mammary duct does not suggest breast cancer. Mastitis in a non-lactating woman is treated with the same principles as in a lactating woman but mammography should be performed after the treatment.