What Can Cause Breast Cancer?

What Causes Breast Cancer?

Breast cancer can develop in different types of cells in the breast. Two of the most common types are invasive ductal carcinoma and invasive lobular carcinoma. Both begin in breast tissue but can spread to other parts of the body. While some people are at higher risk of breast cancer than others, no one, including men, should consider themselves immune. 

Causes of breast cancer fall into two categories: those you can avoid and those you cannot. Understanding your risk will help you and your doctor know how closely to monitor you. 

You Cannot Change:

• Genetic mutations such as BRCA1 and BRCA2
• Family history
• The density and amount of connective tissue in your breasts
• Your age (breast cancer is more common in those over 50)
• Hormonal factors such as the age of menopause

You Can Change:

• Maintaining a healthy level of activity
• Continuing a healthy lifestyle as you age
• Drinking alcohol
• Taking certain hormones (talk to your doctor if you have concerns)

While those with genetic mutations or other strong risk factors may have a greater chance of developing breast cancer, those with no family history and a healthy lifestyle should still practice preventative measures such as mammograms.