Causes of colon cancer

A high-fat diet is a major cause of colon cancer. High fat can be both a direct factor in coronary heart disease and an auxiliary factor. Therefore, people with a high-fat diet should pay attention to control. The following is a detailed introduction to the causes of colitis:

1. Age of onset. Most patients with colon cancer develop the disease after the age of 50.

2. Family history: If a person's first-degree relatives, such as parents, have had colorectal cancer, their risk of developing the disease in their lifetime is 8 times higher than that of the general population. About a quarter of new patients have a family history of colorectal cancer.

3. History of colon disease: Certain colon diseases such as Crohn's disease or ulcerative colitis may increase the chance of developing colorectal cancer. Their risk of colon cancer is 30 times that of ordinary people.

4. Polyps: Most colorectal cancers develop from small precancerous lesions, which are called polyps. Among them, villous adenomatous polyps are more likely to develop into cancer, with a malignant chance of about 25%; the malignant rate of tubular adenomatous polyps is 1-5%.

5. Genetic characteristics: Some familial tumor syndromes, such as hereditary non-polyposis colon cancer, can significantly increase the chance of developing colorectal cancer, and the onset time is younger.

Some chronic colon diseases can also cause colon cancer. For example, rectal polyps are one of the causes. It should be noted that the longer the rectal polyps last, the greater the possibility of causing colon cancer. Elderly patients with rectal polyps should not only be cured in time, but also pay attention to postoperative care.