FAQs

Male vs. Female Breasts

Though boys and girls begin life with similar breast tissue, over time, men do not have the same complex breast growth and development as women. At puberty, high testosterone and low estrogen levels stop breast development in males. Some milk ducts do exist, but they remain undeveloped, and lobules are most often absent. However, breast problems, including cancer, can occur in men.

Some men may be embarrassed about a change in their breast or chest area and put off seeing a provider, but this may result in a delay in diagnosis. Survival is highest when breast cancer is found early.

Survival Rates

Survival rates for men are about the same as for women with the same stage of cancer at the time of diagnosis. However, men are usually diagnosed at a later stage because they are less likely to report symptoms. In 2013, it is estimated that among men in the U.S., there will be:

  • 2,240 new cases of invasive breast cancer
  • 410 breast cancer deaths

Warning Signs for Men

The most common sign of breast cancer in men is a painless lump or thickening in the breast or chest area. However, any change in the breast or nipple can be a warning sign of breast cancer in men including:

  • Lump, hard knot or thickening in the breast, chest or underarm area (usually painless, but may be tender)
  • Change in the size or shape of the breast
  • Dimpling, puckering or redness of the skin of the breast
  • Itchy, scaly sore or rash on the nipple
  • Pulling in of the nipple (inverted nipple) or other parts of the breast
  • Nipple discharge

As men tend to have much less breast tissue compared to women, some of these signs can be easier to notice in men than in women. These symptoms may also be signs of a benign (non-cancer) breast condition. If you notice any of these signs or other changes in your breast, chest area or nipple, see your health care provider right away.

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