Mastitis postpartum: symptoms, care, and warning signs

Mastitis may develop while your milk production is changing and feeding routines are still being established. One breast may feel hot, tender, swollen, or firm, and the skin can look red. You may also feel feverish, achy, chilled, or unusually tired. Painful breastfeeding can occur alongside mastitis, but pain alone does not establish the cause.

Early postpartum discomfort can be hard to separate from normal feeding adjustment. A clinician or lactation professional can assess the breast, feeding pattern, nipple injury, and your general condition.

Keep feeding or expressing in a way that is comfortable, but do not force the breast to empty or add repeated pumping sessions. Try a position with less pressure on the sore area. Use a cool cloth after feeding, wear a supportive but non-tight bra, and avoid vigorous rubbing. Rest whenever possible and drink according to thirst.

If pain, fever, or illness is developing, contact your maternity team, family doctor, or another qualified clinician. Medication choices should take account of breastfeeding, allergies, and your medical history. A lactation consultation may help if attachment or positioning is painful.

Seek prompt medical advice if you are increasingly unwell, have a persistent fever, worsening redness, severe pain, or difficulty drinking. Get assessed if symptoms do not begin to improve with supportive measures or if a defined lump remains. A collection of infected fluid can require treatment, so do not puncture or squeeze a swollen area.

Ask which symptoms require same-day review, whether your feeding technique could be aggravating the breast, and which pain relief is compatible with your situation. Ask how to recognise a persistent collection, whether your baby can continue feeding, and who to contact overnight if your condition worsens.