Analysis of several factors related to the causes of rectal cancer

According to the latest medical research, people with different eating habits have different chances of developing rectal cancer. Some people are more likely to develop rectal cancer, while others are less likely to develop rectal cancer, depending on many factors. What are the common causes of rectal cancer ? Let's talk about the common causes of rectal cancer.

In general, the common causes of rectal cancer are:

1. Dietary factors: The so-called Western diet of high fat, high protein and low fiber is believed to be related to the cause of rectal cancer. If these residents immigrate to areas with a high incidence of rectal cancer, the dietary structure will change, and the incidence rate will increase accordingly. This is because high-fat and high-protein foods can increase the amount of methylcholanthracene in feces, which can increase bile acid secretion and be decomposed into unsaturated polyunsaturated hydrocarbons by anaerobic bacteria in the intestines. Both of these substances are carcinogens. The reduction in fiber content 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 increase in the chance of cancer.

2. Adenoma canceration: It is one of the common causes of rectal cancer. Tubular 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 canceration rate. 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.

3. Genetic factors: In the families of patients with rectal cancer, there are many with a family history of cancer and many digestive tract tumors. Due to the change of genes in normal cells, cancer patients inherit a susceptibility, coupled with certain stimulating factors, which makes tissue cells grow rapidly and develop into cancer. Cell genetic genes mutate and become malignant cells with genetic characteristics, which manifests as a family history of cancer. This is a common cause of rectal cancer.

4. Inflammatory bowel disease: Ulcerative colitis and Crohn's disease are also the causes of rectal cancer due to the destruction of the intestinal mucosa, the proliferation of ulcer repair, and the formation of granulation tissue. Schistosomiasis eggs are deposited in the rectal mucosa, and chronic inflammation stimulates cancer.

The above analysis is about the common causes of rectal cancer. I hope it will help you understand rectal cancer. If you have any questions about the causes of rectal cancer, you can consult our online experts, who will give you detailed answers.