What are the factors that may be related to rectal cancer?

In life, rectal cancer has affected the normal life of many patients. It is necessary for everyone to learn more about the relevant knowledge of rectal cancer. Next, let the experts introduce to you what are the related factors of rectal cancer. I hope it can help everyone better understand the related factors of rectal cancer .

1. The so-called Western diet, which is high in fat, protein and low in fiber, is considered to be a related factor 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 low-fat and fiber-rich rough food, and the incidence of colorectal cancer is low. If these residents immigrate to areas with high incidence of colorectal cancer, the dietary structure will change, and the incidence will increase accordingly. Because high-fat and high-protein foods can increase the amount of methylcholanthrene in feces, it can cause increased bile acid secretion, which is decomposed into unsaturated polyunsaturated hydrocarbons by anaerobic bacteria in the intestines. Both of these substances are carcinogens. The reduction in the amount of fiber slows down the speed of feces passing through the intestines, which increases the contact time between these carcinogens and the intestinal conjunctiva, leading to an increased chance of cancer.

2. Adenoma canceration. Neoplastic polyps can be cancerous and are related factors for rectal cancer. 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 canceration rate. Among adenomas, there are hereditary familial adenomas, which are considered precancerous lesions. They usually occur after the age of 30, but there are also cases where cancer occurs before the age of 20.

3. Inflammatory bowel disease is also a factor related to rectal cancer. 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. Schistosomiasis eggs are deposited in the rectal mucosa, and chronic inflammation stimulates cancer.

4. Other factors related to rectal cancer, such as immune deficiency, genetic factors, viral infection, and effects after gastrectomy and cholecystectomy.

The above content is the relevant factors of rectal cancer introduced by experts. Please pay attention to it. I hope it will be helpful to you. If you have other questions about the relevant factors of rectal cancer, please consult online experts and they will give you detailed answers.

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