In plain words
Mastitis is swelling and inflammation of breast tissue. It can cause a red, hot, tender patch on one breast. Some mothers also have fever, chills, and aches. It often starts with a that does not drain. Some cases are infections, and many are not. Mastitis is not always treated with antibiotics. Early signs can look like or a plugged duct, so the key question is whether there is fever or feeling very unwell. A fever is a reason to call your provider the same day.
The deeper version
Lactational mastitis is inflammation of mammary tissue during lactation, usually unilateral and most common in the first months postpartum. It presents with focal erythema, warmth, induration, and pain, often with systemic symptoms such as fever and malaise. The Academy of Breastfeeding Medicine's Clinical Protocol #36 (2022) describes a continuum from engorgement and plugged ducts through non-infectious and to breast abscess, and it bases care on effective milk removal, analgesia, and assessment for infection. Reported incidence varies widely because definitions differ. The main controversy is when antibiotics are needed, and whether cultures should be routine when symptoms are mild.
Where it comes up
- Clogged ducts and mastitisPostpartum: Your Body
- Engorgement when milk comes inPostpartum: Your Body
- Signs of infection after birthPostpartum: Your Body
- Keeping ducts clear: prevention habitsFeeding Your Baby
What mothers here say about mastitis
No one has posted under this term yet.
Sources
- Academy of Breastfeeding Medicine — Clinical Protocol #36: Mastitis (2022)
- La Leche League International — Mastitis: guidance for breastfeeding mothers