Breast infection

Mastitis; Infection - breast tissue; Breast abscess - post partum mastitis; Breastfeeding - mastitis

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

Normal female breast anatomy

The female breast is composed mainly of fatty tissue interspersed with fibrous or connective tissue. The circular region around the nipple is often a different color or pigmented. This region is called the areola.

Breast infection

Most breast infections occur in breastfeeding women when bacteria enters the breast through cracks in the nipple. In severe infections, abscesses may occur. Antibiotics may be indicated for treatment.

Female Breast

The female breast is either of two mammary glands (organs of milk secretion) on the chest.


Mastitis is inflammation of the breast, most commonly due to infection. Mastitis usually occurs in breastfeeding women if milk ducts are blocked, and milk cannot flow out. Bacteria can enter through a duct opening or a crack in the skin of the nipple, and multiply in the milk. Symptoms of mastitis include breast pain, swelling, warmth, and redness.



Exams and Tests


Outlook (Prognosis)

Possible Complications

When to Contact a Medical Professional