Neonatal infectious mastitis

Definition

Pyogenic infection of the breasts of neonates, whose breast tissue may be enlarged as a result of transplacentally transmitted maternal oestrogens. It is twice as common in female as in male infants; most cases are unilateral. It is most commonly caused by Staphylococcus aureus.

Exclusions

• Breast engorgement of newborn
• noninfective mastitis of newborn

Index Terms