To find out about Colon Cancer first we need to know what Cancer is. A collection of 100 or more different diseases is Cancer. Cancer affects the cells which are a body's necessary unit; Cancer usually occurs when the body cells starts behaving abnormally and split or divides without order or control. Like other organs a human body's rectum and colon also is made-up of several kind of cells. Generally, cells divide or split for producing more cells, this happens only when a body needs more cells. This orderly procedure helps in keeping us healthy.
If body cells keep splitting or dividing when the body does not need new cells, then a mass or collection of tissue starts forming. This mass or collection of additional tissue is called a tumor or growth, which can be malignant or benign.
Tumors which are called benign do not have Cancer. They are normally removable and in many cases they usually don't come back. Most importantly, benign tumor cells don't spread at all to other body parts. In extreme rare cases benign tumor can be a threat to any one's life.
Tumors which are called malignant are the ones which have cancer. Cells which have cancer can damage and invade organs and tissues close to the tumor. Cancer cells are able to break or split away from malignant tumor, it can also enter the lymphatic or bloodstream system. Normally this is the way cancer spreads in a human body.
What is Colon Cancer?
Firstly is important to know what is Colon, now Colon is a part of our body's digestive system, this is where body's waste material stores. The end of colon adjacent is the rectum which leads to anus. Both together, form an extended muscular tube which is known as large intestine which is even known as large bowel. Colon or rectum tumors are growths that arise from the large intestines or large bowels inner wall. Large intestines benign tumor is called polyps, and large intestines malignant tumor is called cancer. Benign polyps don't have the tendency to invade tissues around and even don't spread to different parts of a body.
Benign polyps are not at all life-threatening and can be very easily removed while colonoscopy. However if this benign polyps is not removed for a long time from large intestine it can turn into malignant. Most cancers of large intestine or the large bowel is known to be developed from benign polyps. There is even a possibility that cancer cell could break and spread from one organ to another like lungs and liver and form new tumors.
Globally rectum and colon cancer is third foremost reason of cancer found in men and fourth foremost reason of cancer found in women. Colon cancer is commonly found in Western world, but is uncommon in Africa and Asia.
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