Beyond The Shock(R)

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Causes of Breast Cancer

- What if it’s cancer?
- What caused it?
- What should I do now?
- How is breast cancer treated?
- How long will treatment take?
- What will it be like?
- Will I be okay?
- What about my family?

When a lump or suspicious site in your breast is detected, it raises some serious questions. In this chapter, we are going to do our best to answer them. We will discuss what doctors know and do not know, how to react to your diagnosis as well as how to understand it, and how to move beyond the shock.

Risk Factors
So what do scientists actually know about the causes of cancer? It’s a difficult question. Cancer grows when a cell’s DNA is damaged, which we discussed in Chapter 3, but why or how that DNA becomes damaged is still unknown. It could be genetic or environmental, or in most cases a combination of the two. But most patients will never know exactly what caused their cancer.

However, there are certain established risk factors that are associated with breast cancer:

- A family history with breast cancer
- Early menstruation (before age 12)
- Late menopause (after 55)
- Breast tissue that is more dense with lobular and ductal tissue relative to fatty tissue
- Noncancerous cell abnormalities

These factors are genetic, they are not something you can control.

60-70% of people with breast cancer have no connection to them at all, and other people with risk factors will never develop cancer.