Some warning signs of breast cancer are— New lump in the breast or underarm (armpit). Thickening or swelling of part of the breast. Irritation or dimpling of breast skin. Feb 01, · Breast cancer can have different symptoms for different people. Most don’t notice any signs at all. The most common symptom is a lump in your breast or armpit. Others include skin .
Other possible symptoms of breast cancer include: Swelling of all or part of a breast (even if no lump is felt) Skin dimpling (sometimes looking like an orange peel) Breast or nipple pain.