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Colorectal Cancer
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Colorectal cancer is defined as the cancer of colon or rectum. The colon is the lowest portion of the large intestine and is the last part of the digestive system through which food passes.

The rectum is the final section of the colon, through which solid wastes are eliminated from the body. Colorectal cancer is one of the most common forms of cancer. Cancer can occur anywhere in the colon or the rectum.

It usually begins as a benign that is noncancerous growth on the lining of the colon or rectum. These benign growths are known as polyps. Over time, some polyps may begin to grow at a very rapid rate. When this happens, they become malignant. Malignant means capable of causing disease or death.

Causes of Colorectal Cancer

There are not exact causes of colorectal cancer known. But there are certain risk factors for the disease, which are as follow: -

Family history: Near about 10 percent of the all cases of colorectal caner are hereditary influenced.

History of Colorectal Cancer: Some people contract colorectal cancer more than once. New cancers develop in area other than those in which the cancer first appeared. Age the risk of having colorectal cancer increases with Age.

Diet: Eating foods that are high in fat and low in fibre many increase the risk of colorectal cancer. Physical inactivity: People who tend to be less active are at greater risk for colorectal cancer.

Inflammatory Bowel Disease:- Inflammatory bowel disease refers to a number of different conditions in which the colon becomes irritated and inflamed. Ulcers often develop on the lining of the bowel. This pattern can increase the risk of colorectal cancer.

Symptoms of Colorectal Cancer

The earliest sign of colorectal cancer may be bleeding. A person many notice that blood is produced during bowel movements. Blood can also be found in the fasces. As the disorder develops, a person’s pattern of bowel movements may change.

The stools may change in size and become more narrow. Other symptoms of colorectal cancer include general stomach discomfort, stomach cramps, gas pains, and diarrhoea of constipation. The patient may feel that the bowel does not empty completely during a movement. Constant tiredness and weight loss for no known reason may also be a symptom.

Treatment of Colorectal Cancer

The treatment for colorectal cancer is generally surgery. There are two forms of surgery used. In one, a tube similar to a sigmoid scope is inserted into the rectum. At more advanced stages, a second surgical method may be used. In this method, an incision is made into the walls of the abdomen.

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