When to worry about fever after birth with mastitis

Mastitis is inflammation in breast tissue during the postpartum period and may cause a painful, warm, swollen or reddened area, often with chills, fatigue and fever. It can affect one breast or part of a breast. A firm area that becomes more painful, pus-like nipple discharge or a collection of fluid may need examination. Fever after birth has several possible causes, so breast symptoms should be considered alongside wound, pelvic and urinary symptoms.

Rest, drink fluids, use a cool pack for comfort and continue breastfeeding or expressing in a way that feels manageable unless your clinician advises otherwise. Avoid forceful massage or suddenly stopping feeds. Contact a clinician the same day if symptoms are significant, worsening or not settling. They can check for bacterial infection, review pain relief and discuss treatment compatible with feeding your baby.

Seek urgent help for severe weakness, confusion, fainting, breathing difficulty, chest pain, rapidly worsening breast swelling, severe pain or inability to keep fluids down. Arrange prompt assessment for pus-like drainage, a growing tender lump or fever that continues despite the care plan.

Ask whether the breast findings fit mastitis, how to continue feeding safely, which pain relief is suitable, whether antibiotics are needed, and what signs could indicate an abscess. Ask when to return if the red or tender area persists.