Breast cancer occurs when cells within the breast develop genetic mutations that cause the cells to grow abnormally fast. Eventually, these cells develop the ability to invade other tissues. Although breast cancer is most common in women (according to the Mayo Clinic, women are 100 times as likely as men to develop breast cancer), the breast tissue of men can become cancerous.
Most Common Symptom
The most common symptoms of breast cancer in men is a thickening or lump in the breast.
Other Symptoms
Other symptoms can include nipple discharge, changes in the skin on the breast and dimpling of the skin.
Genetic Factors
Approximately one in six cases of male breast cancer are the result of an inherited genetic mutation.
Age
Breast cancer is most commonly diagnosed in men between the ages of 60 and 70.
Risk Factors
Common risk factors for breast cancer in men include a family history of breast cancer, exposure to radiation, elevated estrogen levels and liver disease.
