Non-lactational mastitis during pregnancy

Non-lactational mastitis during pregnancy can cause breast pain, warmth, redness, swelling, or a firm area and should be assessed to identify the cause. Pregnancy-related breast changes can make examination more complex, so report new or changing symptoms.

Mastitis describes inflammation, not one single cause. Irritation, pressure, a blocked duct, skin disease, or infection may contribute even when you are not breastfeeding. A breast lump or pain is not enough to identify the cause. A clinician can choose pregnancy-appropriate examination and imaging when needed.

Tell your maternity or breast-care team when the symptom began and whether it is changing. Avoid tight clothing and pressure over the area. A cool pack wrapped in cloth may soothe discomfort. Do not squeeze a lump or vigorously massage the breast. [Breast Pain](/symptoms/breast-pain/) can help you describe the symptom; a lactation consultation may be useful later if feeding plans or breast drainage become relevant.

Arrange prompt medical review for a new lump, spreading redness, persistent swelling, nipple inversion, or bloody or clear discharge. Seek urgent help for severe illness, fainting, confusion, breathing difficulty, or rapidly worsening pain. Mention your pregnancy before taking any medicine so the clinician can check that it is suitable.

Ask: Could this be infection or another breast condition? Which examination or imaging is suitable during pregnancy? What pain relief can I use? Should I monitor the area at home? Which changes require same-day care?