The first noticeable symptom of breast cancer is typically a lump that
feels different from the rest of the breast tissue. More than 80% of
breast cancer cases are discovered when the woman feels a lump. The
earliest breast cancers are detected by a mammogram. Lumps found in
lymph nodes located in the armpits can also indicate breast cancer.
Indications of breast cancer other than a lump may include thickening
different from the other breast tissue, one breast becoming larger or
lower, a nipple changing position or shape or becoming inverted, skin
puckering or dimpling, a rash on or around a nipple, discharge from
nipple/s, constant pain in part of the breast or armpit, and swelling
beneath the armpit or around the collarbone. Pain ("mastodynia") is
an unreliable tool in determining the presence or absence of breast