Breast infection - Overview

Alternative Names

Mastitis; Infection - breast tissue; Breast abscess

Definition of Breast infection:

A breast infection is an infection in the tissue of the breast.

Causes, incidence, and risk factors:

Breast infections are usually caused by a common bacteria (Staphylococcus aureus) found on normal skin. The bacteria enter through a break or crack in the skin, usually on the nipple.

The infection takes place in the fatty tissue of the breast and causes swelling. This swelling pushes on the milk ducts. The result is pain and lumps in the infected breast.

Breast infections usually occur in women who are breastfeeding. Breast infections that are not related to breastfeeding might be a rare form of breast cancer.

Female Breast

Breast infection

Normal female breast anatomy

Reviewed last on: 11/1/2009
Linda Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington School of Medicine; Susan Storck, MD, FACOG, Chief, Eastside Department of of Obstetrics and Gynecology, Group Health Cooperative of Puget Sound, Redmond, WA, Clinical Teaching Faculty, Department of Obstetrics and Gynecology, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

References

Newton ER. Breast-feeding. In: Gabbe SG, Niebyl JF, Simpson JL, eds. Obstetrics: Normal and Problem Pregnancies. 5th ed. Philadelphia, PA: Churchill Livingston Elsevier; 2007:chap 22.

Grobmyer SR, Massoll N, Copeland EM III. Clinical management of mastitis and breast abscess and idiopathic granulomatous mastitis. In: Bland KI, Copeland EM III, eds. The Breast: Comprehensive Management of Benign and Malignant Disorders. 4th ed. Philadelphia, Pa: Saunders Elsevier; 2009:chap 6.

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Breast infection - Overview

Alternative Names

Definition of Breast infection:

Causes, incidence, and risk factors:

References

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