Lump in Breast Facts for Men


Breast disorders are normally thought of as a female issue. However, breast disorders also affect men. Gynecomastia is a noncancerous condition that causes men to grow enlarged breasts. The firm tissue that develops begins as a small lump. Breast cancer can also cause men to develop breast lumps.


  • According to the National Cancer Institute, men between the ages of 60 and 70 years old are more likely to develop breast cancer.


  • According to, gynecomastia causes males to develop firm breast tissue. The tissue first appears as a noncancerous lump usually underneath the nipple. It's also important to note that the tissue isn't a tumor. The exact cause of this disorder is unknown. However, an imbalance of the hormones estrogen and testosterone may play a role.

Breast Cancer

  • According to the American Cancer Society, a man has a 1 in 1,000 chance of developing breast cancer in his lifetime. A breast cancer lump can develop anywhere there is breast tissue. However, it generally doesn't develop underneath the nipple like gynecomastia breast tissue.


  • Signs of breast cancer in men include: a breast lump, skin puckering, nipples that turn inward, and nipple discharge.


  • Men should seek medical help if they develop a breast lump. An exam is the only way to distinguish noncancerous breast tissue from a cancerous tumor.

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  • Photo Credit Image by, courtesy of Christopher Macsurak
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