Article Sections

Introduction

Mastitis, a common condition, causes pain and inflammation of the breast and is rarely complicated by the formation of a breast abscess.  This condition most commonly occurs in lactating women (ie, lactational mastitis).  Nonlactational mastitis is less common and includes idiopathic granulomatous mastitis and periductal mastitis.  This article focuses on lactational mastitis and breast abscess.

Pathophysiology and risk factors

Lactational mastitis is common in breastfeeding women due to inadequate milk duct drainage.  Women are at greatest risk for mastitis during the first 3 months postpartum, when breastfeeding is still becoming established.  Difficulties with breastfeeding (eg, poor latching) can lead to prolonged engorgement, inadequate milk drainage, and clogged milk ducts.  Bacteria from the infant's nasopharynx or the maternal skin, such as Staphylococcus aureus and

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