Rectal cancer does not occur overnight

The development of all cancers is a slow accumulation process, so the causes of cancer, including colorectal cancer, are generally extremely complex and are the result of many factors working together. Here we briefly introduce several common causes of colorectal cancer .

The so-called Western diet, which is high in fat, protein and low in fiber, is widely recognized as the cause of colorectal cancer. Western countries are high-incidence areas for colorectal cancer, and the incidence of colorectal cancer is high. In contrast, the Banti tribe in South Africa consumes a low-fat, fiber-rich, rough diet, and has a low incidence of colorectal cancer.

Adenomatous polyps can become cancerous. Adenomas can be divided into three types: tubular adenomas, villous adenomas, and mixed adenomas. Tubular adenomas have a high incidence rate, and villous adenomas have a high rate of canceration. Among adenomas, there are hereditary familial adenomas, which are considered precancerous lesions. They usually occur after the age of 30, but some people may become cancerous before the age of 20.

Ulcerative colitis and Crohn's disease are caused by the destruction of intestinal mucosa, the proliferation of ulcer repair, and the formation of granulation tissue, which leads to cancer. Schistosoma japonicum eggs are deposited in the rectal mucosa, and chronic inflammation stimulates cancer.

Causes of rectal cancer include immune deficiency, genetic factors, viral infection, and the effects of gastrectomy and cholecystectomy.

The causes of rectal cancer are so complicated, which is one of the reasons why rectal cancer is difficult to cure. I believe that through the introduction of this article, you have a deeper understanding of the causes of rectal cancer. You can also consult our online experts based on your personal situation to see if there is a cause of rectal cancer.