These three causes of rectal cancer are very important

Understanding the causes of rectal cancer is very helpful for preventing it, but there are still many people who don’t know the causes of rectal cancer. So, what are the specific causes of rectal cancer ? Regarding this issue, let’s ask an expert to introduce the causes of rectal cancer to you.

1. Genetic factors of colorectal cancer

Genetics is an important factor in colorectal adenomatous polyps and colorectal cancer. Clinically, there are two types of patients with more prominent genetic factors, one is familial adenomatous polyposis and the other is hereditary non-polyposis colorectum, which also includes site-specific colorectal cancer and cancer family syndrome. Except for these two types of patients, they are all called sporadic cases.

2. Dietary factors

Dietary factors play an extremely important role in the occurrence of colorectal cancer. Currently, colorectal cancer ranks second among malignant tumors worldwide. It ranks second in developed Western countries, but only eighth in some underdeveloped countries. The reason why epidemiological data show such contradictory phenomena is that protective dietary factors against the occurrence of colon cancer are not taken into account. A study from Northern Europe found that the incidence of colon cancer in Danes was significantly higher than that in Finns. Although the fat intake was the same, the Finns consumed more fiber than the Danes, indicating that fiber may have the carcinogenic effect of regulating fat. In addition, the causes of colorectal cancer also include vitamins and minerals: the incidence of colon cancer is affected by the environment. Among the environmental factors, epidemiological studies focus on dietary habits and food choices. In addition to fat, fiber and calories, micronutrients and minerals with antioxidant effects have also begun to be studied. Antioxidants have the function of scavenging or neutralizing the harmful effects of certain oxygen metabolites called oxygen free radicals and singlet oxygen.

3. Inflammatory colon disease

Among the inflammatory diseases of the colon, three are most closely related to colorectal cancer. Chronic ulcerative colitis is recognized as a disease with a high risk of canceration, but its risk of canceration is related to the duration of the disease and the location and extent of the lesion. The risk begins to increase for patients with a disease duration of 10 years, and the risk increases for patients with lesions limited to the left colon. The risk of canceration increases in patients with ulcerative proctitis and ulcerative colitis. This is one of the causes of rectal cancer.

The above are three very important causes of rectal cancer. They are for your reference only. I hope you can do a good job in preventing rectal cancer and stay away from these causes of rectal cancer. In addition, if you have any questions about the causes of rectal cancer, please consult online experts!

For more information, please visit the colon cancer topic http://www..com.cn/zhongliu/ca/ or consult with experts for free. The experts will give detailed answers based on the patient's specific situation.