colon cancer symptom

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Tuesday, September 19, 2006

danger colorectal cancer

The human colon is a muscular, tube-shaped organ measuring about 4 feet long. It extends from the end of your small bowel to your anus, twisting and turning through your abdomen (belly). The colon has 3 main functions.

The right side of your colon plays a major role in absorbing water and electrolytes, while the left side is responsible for storage and evacuation of stool.

Cancer is the transformation of normal cells. The transformed cells grow and multiply abnormally.

Left untreated, these cancers grow and eventually spread through the colon wall to involve the adjacent lymph nodes and organs. Ultimately, they spread to distant organs such as the liver, lungs, brain, and bones.

Cancers are dangerous because of their unbridled growth. They overwhelm healthy cells, tissues, and organs by taking their oxygen, nutrients, and space.

Most colon cancers are adenocarcinomas—tumors that develop from the glands lining the colon’s inner wall.

These tumors are sometimes referred to as colorectal cancer, reflecting the fact that the rectum, the end portion of the colon, can also be affected.
Deaths from colorectal cancer rank third after lung and prostate cancer for men and third after lung and breast cancer for women.

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