August 21, 2009
Posted: 02:04 AM ET
Learn more about the risks of prostate cancer tonight 9pm ET on CNN
A risk factor is anything that affects your chance of getting a disease such as cancer. Different cancers have different risk factors. For example, exposing skin to strong sunlight is a risk factor for skin cancer. Smoking is a risk factor for many cancers.
Although we don't yet completely understand the causes of prostate cancer, researchers have found several factors that may change the risk of getting it. For some of these factors, the link to prostate cancer risk is not clear, yet.
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