Risks

Risks associated with a breast biopsy include:

  • Bruising and swelling of the breast
  • Infection or bleeding at the biopsy site
  • Altered breast appearance, depending on how much tissue is removed and how your breast heals
  • Additional surgery or other treatment, depending on biopsy results

Contact your doctor if you develop a fever, if the biopsy site becomes red or warm, or if you have unusual drainage from the biopsy site. These can be signs of an infection that may require prompt treatment.

Nov. 22, 2016
References
  1. Esserman LJ, et al. Breast biopsy. http://www.uptodate.com/home. Accessed June 3, 2016.
  2. For women facing a breast biopsy. American Cancer Society. http://www.cancer.org/treatment/understandingyourdiagnosis/examsandtestdescriptions/forwomenfacingabreastbiopsy/. Accessed June 3, 2016.
  3. Having a breast biopsy: A review of the research for women and their families. Agency for Healthcare Research and Quality. https://www.effectivehealthcare.ahrq.gov/ehc/index.cfm/search-for-guides-reviews-and-reports/?pageAction=displayProduct&productID=2234. Accessed June 3, 2016.
  4. Ultrasound-guided breast biopsy. RadiologyInfo.org. http://www.radiologyinfo.org/en/info.cfm?pg=breastbius. Accessed June 3, 2016.
  5. Magnetic resonance (MRI)-guided breast biopsy. RadiologyInfo.org. http://www.radiologyinfo.org/en/info.cfm?pg=breastbimr. Accessed June 3, 2016.
  6. Pfenninger JL, et al., eds. Breast biopsy. In: Pfenninger & Fowler’s Procedures for Primary Care. 3rd ed. Philadelphia, Pa.: Mosby Elsevier; 2011. http://www.clinicalkey.com. Accessed June 3, 2016.
  7. AskMayoExpert. Percutaneous biopsy. Rochester, Minn.: Mayo Foundation for Medical Education and Research; 2016.
  8. Lonzetta N, et al. Diagnosis and management of benign, atypical, and indeterminate breast lesions detected on core needle biopsy. Mayo Clinic Proceedings. 2014;89:536.