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Causes

By Mayo Clinic staff

The cause of fibroadenomas is unknown. However, fibroadenoma development is probably related to reproductive hormones. Fibroadenomas occur in greater frequency during your reproductive years, can increase in size during pregnancy or estrogen therapy, and tend to shrink after menopause, when estrogen stimulation decreases.

References
  1. Valea FA, et al. Benign breast disease. In: Katz VL, et al. Comprehensive Gynecology. 5th ed. Philadelphia, Pa.: Mosby Elsevier; 2007. http://www.mdconsult.com/das/book/body/208746819-4/0/1524/0.html. Accessed March 24, 2011.
  2. Understanding breast changes: A health guide for women. National Cancer Institute. http://www.cancer.gov/cancertopics/screening/understanding-breast-changes/AllPages. Accessed March 24, 2011.
  3. Sabel MS. Overview of benign breast disease. http://www.uptodate.com/home/index.html. Accessed March 24, 2011.
  4. Iglehart JD, et al. Benign breast tumors and related diseases. In: Townsend CM Jr, et al. Sabiston Textbook of Surgery: The Biological Basis of Modern Surgical Practice. 18th ed. Philadelphia, Pa.: Saunders Elsevier; 2008. http://www.mdconsult.com/das/book/body/208746819-6/0/1565/0.html. Accessed March 24, 2011.
  5. Non-cancerous breast conditions: Fibroadenomas. American Cancer Society. http://www.cancer.org/Healthy/FindCancerEarly/WomensHealth/Non-CancerousBreastConditions/non-cancerous-breast-conditions-fibroadenomas. Accessed March 24, 2011.
  6. Pruthi S (expert opinion). Mayo Clinic, Rochester, Minn. April 5, 2011.
DS01069 May 27, 2011

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