RisksBy Mayo Clinic staff
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.
A breast biopsy doesn't cause cancer cells to spread beyond the breast.
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- James JJ, et al. The breast. In: Adam A, et al. Grainger & Allison's Diagnostic Radiology. 5th ed. Philadelphia, Pa.: Elsevier Churchill Livingstone; 2008. http://www.mdconsult.com/books/about.do?about=true&eid=4-u1.0-B978-0-443-10163-2..X5001-5--TOP&isbn=978-0-443-10163-2&uniqId=259733166-219. Accessed June 21, 2011.
- For women facing a breast biopsy. American Cancer Society. http://www.cancer.org/acs/groups/cid/documents/webcontent/003176-pdf.pdf. Accessed June 21, 2011.
- MRI-guided breast biopsy. RadiologyInfo.org. http://www.radiologyinfo.org/en/info.cfm?pg=breastbimr. Accessed June 21, 2011.
- Ultrasound-guided breast biopsy. RadiologyInfo.org. http://www.radiologyinfo.org/en/info.cfm?pg=breastbius. Accessed June 21, 2011.
- Pathology reports. National Cancer Institute. http://www.cancer.gov/cancertopics/factsheet/detection/pathology-reports. Accessed June 21, 2011.