What Is Lactational Mastitis?

The most common type of breast infection is lactational mastitis. With this condition, which occurs when a woman is breastfeeding, the nipples become cracked and sore, allowing bacteria from the baby’s mouth to enter the ducts and rapidly multiply in the milk. Occasionally, infection also arises from a blocked milk duct. In both cases, the breast becomes hard, reddened, hot, and painful.

Specific treatment for lactational mastitis will be determined by your doctor based on:

  • Your age, overall health, and medical history

  • Extent of the condition

  • Your tolerance for specific medications, procedures, or therapies

  • Expectations for the course of the condition

  • Your opinion or preference

Your doctor may suggest trying to unblock the duct with warm compresses and massage. Your doctor may also prescribe antibiotics and an analgesic for pain. In some cases, lactational mastitis progresses and forms an abscess—a more serious condition that may require drainage.

Online Medical Reviewer: McDonough, Brian MD

Date Last Reviewed: 4/2/2010

© 2000-2018 The StayWell Company, LLC. 800 Township Line Road, Yardley, PA 19067. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.