For now, the only sure way to prevent the spread of a cancer is to find it early and remove or destroy it. The American Cancer Society recommends certain early detection tests to find cancers of the breast, prostate, colon, and cervix. But many people don’t know about, or don’t get, these tests. And because these tests aren’t perfect, some cancers can spread before they are found. There are also many cancers that can’t be found early by any of the tests we now have.
Scientists are looking for ways to keep cancer from spreading. For example, certain drugs can be given after surgery to kill cancer cells that might have broken away from the first tumor. Other drugs keep the tumors from making new blood vessels.
Source: http://www.cancer.org
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