A new lump or thickening in the breast or underarm
A lump that feels hard, fixed, or different from surrounding tissue
Swelling of all or part of the breast
Breast or nipple pain that does not go away
Skin dimpling or puckering on the breast
Redness, warmth, or darkening of the breast skin
Nipple turning inward
Nipple discharge, especially bloody or clear discharge without squeezing
Scaly, crusted, or flaky skin on the nipple or breast
Change in breast size, shape, or symmetry
A lump or swelling in the armpit or near the collarbone
Persistent changes in the breast that are new or unusual for you
A mammogram, ultrasound, or breast exam showing an abnormality
A biopsy confirming cancer
See a healthcare professional promptly if you notice any of these signs