New lump in the breast or underarm (armpit).

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Thickening or swelling of part of the breast.

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Irritation or dimpling of breast skin.

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Redness or flaky skin in the nipple area or the breast.

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Pulling in of the nipple or pain in the nipple area.

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Nipple discharge other than breast milk, including blood.

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Any change in the size or the shape of the breast.

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Pain in any area of the breast.