5 common warning signs of breast cancer 1. Lump, hard knot or thickening inside the breast or underarm. 2. Swelling, warmth, redness or darkening of the breast. 3. Change in size or shape of the breast. 4. Dimpling or puckering of the skin on your breast. 5. Nipple discharge. What early breast cancer looks like? … Continue reading Breast cancer signs and detection