Depending on the location of the growth, you may or may not be able to feel a lump. The lump should not continue to grow, and the nipple discharge should not last longer than a few days.
More common in menopausal women, the milk ducts can become swollen or infected. Although it's not considered a dangerous problem, duct ectasia should be evaluated and treated by your doctor. Breast cancer can develop inside of the milk ducts of the breast and can spread to other parts of the body.
If you feel a lump in your breast that does not go away or get smaller within a week, or you notice blood in your breast milk that continues for more than a few days, see your doctor for an examination. To minimize milk duct issues make sure your baby is latching on correctly and breastfeed your baby very often. Use different breastfeeding positions to drain all the areas of your breast and avoid putting unnecessary pressure on your breast tissue. Get it free when you sign up for our newsletter.
Cleveland Clinic. Breast Anatomy. Updated February 11, Marcellin L, Chantry A. Complications of breastfeeding. Rev Prat. Lavigne V, Gleberzon BJ.
Ultrasound as a treatment of mammary blocked duct among 25 postpartum lactating women: a retrospective case series. J Chiropr Med. BMC Fam Pract. Published Sep Breast irradiation and lactation: a review.
Expert Rev Anticancer Ther. Mazzarello S, Arnaout A. Nipple discharge. American Cancer Society. If You Have Breast Cancer. Updated October 11, Continuing support for infant and young child feeding. Geneva: World Health Organization; American Academy of Pediatrics. Bantam Books. New York.
Cancer Genomics Research. Research on Causes of Cancer. Cancer Prevention Research. Cancer Treatment Research.
Cancer Health Disparities. Childhood Cancers Research. Global Cancer Research. Cancer Research Infrastructure. Clinical Trials. Frederick National Laboratory for Cancer Research. Bioinformatics, Big Data, and Cancer.
Annual Report to the Nation. Research Advances by Cancer Type. Stories of Discovery. Milestones in Cancer Research and Discovery. Biomedical Citizen Science.
Director's Message. Budget Proposal. Stories of Cancer Research. Driving Discovery. Highlighted Scientific Opportunities. Research Grants. Research Funding Opportunities. Cancer Grand Challenges. Research Program Contacts. Funding Strategy. Grants Policies and Process. Introduction to Grants Process. NCI Grant Policies.
Legal Requirements. Step 3: Peer Review and Funding Outcomes. Manage Your Award. Grants Management Contacts. Prior Approvals. Annual Reporting and Auditing. Transfer of a Grant. Grant Closeout. Cancer Training at NCI. Resources for Trainees. Funding for Cancer Training. Building a Diverse Workforce. National Cancer Act 50th Anniversary Commemoration. Small milk ducts are attached to the lobules. These ducts join together like branches of grape stems, gradually forming larger ducts.
There are about 10 duct systems in each breast, each with its own opening at the nipple [ 2 ]. During pregnancy, the lobules grow and begin to produce milk. The milk is then released into the ducts so a mother can breastfeed her baby. Muscle tissue in the nipples allows them to become erect in response to stimulation or breastfeeding.
Glands on the areola the shaded circle of skin around the nipple release small amounts of fluid during breastfeeding to lubricate the nipple. After menopause when the ovaries stop producing hormones and a woman stops having periods , the number of lobules decreases and those that remain shrink in size. Learn more about breast density and mammography. Learn about breast density and breast cancer risk. Boys and girls begin life with similar breast tissue.
Learn about breast cancer in men. Facts for Life: Breast Density. Breast Cancer Structure of the Breast.
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