Causes
By Mayo Clinic staffMastitis occurs when bacteria enter your breast through a break or crack in the skin of your nipple or through the opening to the milk ducts in your nipple. Bacteria from your skin's surface and baby's mouth enter the milk duct and can multiply — leading to pain, redness and swelling of the breast as infection progresses.
- Non-cancerous breast conditions. American Cancer Society. http://www.cancer.org/docroot/CRI/content/CRI_2_6X_Non_Cancerous_Breast_Conditions_59.asp. Accessed Feb. 19, 2010.
- Dixon MJ. Lactational mastitis. http://www.uptodate.com/home/index.html. Accessed Feb. 19, 2010.
- Spencer JP. Management of mastitis in breastfeeding women. American Family Physician. 2008;78:727.
- Walker M. Conquering common breast-feeding problems. Journal of Perinatal & Neonatal Nursing. 2008;22:267.
- Breastfeeding: Common concerns. National Women's Health Information Center. http://www.womenshealth.gov/breastfeeding/concerns/. Accessed Feb. 19, 2010.
- FAQ on mastitis. La Leche League International. http://www.llli.org/FAQ/mastitis.html. Accessed Feb. 19, 2010.
- Dixon MJ. Inflammatory disorders of the breast. http://www.uptodate.com/home/index.html. Accessed Feb. 19, 2010.

Find Mayo Clinic on