YOUR CANCER YOUR LIFE – DESTRUCTION OF NORMAL TISSUES; METASTASIS (ABILITY TO SPREAD)
This is one of the most frightening things about cancer. Cancer cells have the ability to separate from the original or primary growth, and get into blood or lymph vessels. They can then travel through the blood or lymph system to far distant parts of the body where they lodge. These cells can, in turn, multiply to form what we call secondary growths.
Cancer cells have one other characteristic feature which is not shared by normal cells. They can invade and destroy surrounding tissues. For example, a cancer growing in a bone will replace and destroy normal bone, softening and weakening it. A cancer growing in the liver will destroy normal liver cells, reducing the liver’s ability to carry out its normal job of clearing waste products from the bloodstream. A cancer growing in the lungs will damage normal lung tissues so it is harder to breathe and the transfer of oxygen into the blood is less efficient.
Normal cells exist peacefully side by side with their neighbours. Cancer cells damage and destroy them.
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