By itself, no: Many people have back pain; so back pain by itself is not a sign of breast cancer. However, if you have a history of breast cancer or if you find a lump in your breast or axilla (armpit), then you should check with your doctor since breast cancer frequently travels to bone. If the backpain persists, do go see your doctor (not necessary for breast cancer, but to evalaute also for other reasons).
Answered 11/22/2013
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