A new lump in the breast or underarm
A lump that feels hard, irregular, or fixed in place
Breast swelling, thickening, or a change in breast size or shape
Skin dimpling or puckering on the breast
Redness, warmth, or darkening of the breast skin
Nipple turning inward or changing position
Nipple discharge, especially if bloody or clear and spontaneous
Scaly, crusted, or peeling skin on the nipple or breast
Persistent breast pain in one area
A lump or swelling in the armpit
One breast looking noticeably different from the other
Any breast change that does not go away after a menstrual cycle
Any new or unusual breast symptom that needs medical evaluation
A clinical breast exam by a healthcare professional
A mammogram or other imaging test if recommended
A biopsy to confirm whether a suspicious area is cancerous