Breast cancer symptoms to look out for

More than 40,000 women will be killed by breast cancer this year in the U.S., according to the American Cancer Society (ACS).

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Women face a one-in-37 chance of dying from the disease, which according to the ACS is the second-leading cause of cancer death in women behind lung cancer.

Read on to learn about symptoms of the disease.

What are some breast cancer signs to be aware of? 

Many women are diagnosed during a routine mammogram without exhibiting any symptoms, according to Dr. Laura Spring, of Massachusetts General Hospital in Boston, Mass.

However, some warning signs include a lump, persistent pain in one area that doesn't go away, and hardening or thickening around the breast and armpit, Spring explained. 

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“What’s most important is for women to know what’s normal for them and to be aware of changes in the breast,” she said. 

Stanford University Medical Center professor Dr. Douglas Blayney said patients may experience bone pain and have weakened bones and fractures if the cancer has already spread.

What else should I know? 

Skin dimpling -- when it “starts looking like a peeled orange” -- is unusual, Dr. Parvin Peddi, an oncologist at UCLA Health, told Fox News.

It “can be a sign of a cancer underneath that is pulling the skin in,” she said. 

“Very uncommonly” do women have nipple discharge or blood coming from their nipples, said Dr. Adam Brufsky, a professor at the University of Pittsburgh School of Medicine. However, he added that bloody nipples do not necessarily indicate cancer.

Dr. Margaret Chen, a breast surgeon at NewYork-Presbyterian/Columbia University Medical Center, said that asymmetry and pain are less common symptoms of cancer. She stressed the importance of routine mammograms, given that there are often no warning signs. 

Skin redness and feeling warmth in the breast are both rare breast cancer symptoms, according to Spring. She advised women with any questions or concerns to see a doctor.

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