What should you know about mastitis in perimenopause?

Perimenopause is the transition before menopause and can bring irregular periods, hot flushes, night sweats, mood changes and breast tenderness. Mastitis means inflammation of breast tissue, often with local warmth, redness, swelling or pain. Hormonal breast sensitivity may overlap with these symptoms, but it does not establish mastitis or explain persistent one-sided inflammation. A breast lump is a presentation of several conditions; it is not proof of a particular diagnosis.

Book a clinical assessment for new redness, warmth, swelling, nipple discharge or a tender firm area. Note when the change began, whether it is on one side, any fever or chills, and medicines or hormone treatments you use. A clinician may examine the breast and lymph nodes and decide whether imaging, monitoring or treatment is appropriate. Avoid squeezing the area. Use a cool cloth for comfort and take only medicines that fit your health history. Keep a record of cycle changes such as heavy periods or a missed period, since that context helps separate perimenopause symptoms from a breast problem.

Get same-day advice if redness spreads, pain becomes severe, swelling increases, pus-like discharge appears, or fever and chills develop. Seek urgent help for faintness, confusion or difficulty breathing. Arrange follow-up if symptoms do not improve as expected, recur, or leave a firm area, skin dimpling, nipple inversion or ongoing discharge.

Could these breast changes be separate from my perimenopause symptoms? Do I need breast imaging or a review after treatment? Could any hormone medicine or other medicine affect the breast? Which symptoms require urgent reassessment?