Sign #1: A New Lump or Thickening in the Breast or Underarm
The most commonly reported change is a new lump or mass in the breast or underarm area. According to the CDC and American Cancer Society, this often feels different from the surrounding tissue—perhaps harder, irregular in shape, or painless (though some can be tender).
It may appear suddenly or develop slowly.
Check both breasts and armpits during self-exams.
Not all lumps are cancerous—many are cysts or fibroadenomas—but any new one warrants a professional review.
But that’s not all… even without a distinct lump, pay attention to…Stand in front of a mirror with your arms at your sides, then raised overhead. Look for changes in size, shape, contour, or skin texture.
Lie down on your back with a pillow under one shoulder. Use the opposite hand’s fingers (flat, not pointed) to gently press in small circular motions around the breast and armpit.
