Which factors are directly related to the cause of rectal cancer

So far, most people believe that the cause of rectal cancer is related to food or genetics. As the pace of life accelerates, people's diet has changed a lot, leading to many people developing rectal cancer. This shows that this is one of the causes of rectal cancer. Let's learn about it together.

The specific causes of rectal cancer are as follows:

1. Colon polyps: Colon polyps can be divided into adenomatous polyps, hyperplastic polyps, inflammatory polyps and hamartomatous polyps. According to the histological structure of the polyps, adenomatous polyps can be divided into villous polyps and tubular polyps; according to the number of colon polyps and their heredity, adenomatous polyps can be divided into single, multiple and familial hereditary polyposis.

2. Diet structure: Epidemiological studies have shown that the cause of colorectal cancer is significantly related to economic conditions and dietary structure. The incidence rate is significantly higher in economically developed areas, areas and groups where the diet has a high proportion of animal fat and protein and a low fiber content. The exact mechanism of the relationship between dietary structure and the cause of colorectal cancer is not yet fully understood. It is generally believed that it may be related to factors such as the metabolites of animal fat, bacterial decomposition products, and the slowing of intestinal peristalsis and increased intestinal toxin absorption due to a low-fiber diet.

3. Chronic colorectal inflammation: Chronic ulcerative colitis and granulomas caused by chronic schistosomiasis are directly related to the cause of rectal cancer. The longer the course of the disease, the higher the possibility of colorectal cancer. The incidence of colorectal cancer in patients with ulcerative colitis for more than 20 years is about 20-40%.

4. Genetic factors: This is one of the causes of rectal cancer. In addition to rectal cancer patients caused by familial polyposis or malignant transformation of ulcerative colitis, about 5-10% of other rectal cancer patients have a clear family history of tumors, collectively referred to as hereditary non-familial polyposis rectal cancer.

Clinically, what are the characteristics of the causes of rectal cancer? The above is a detailed introduction of the causes of rectal cancer by experts. I hope everyone has a certain understanding of the causes of rectal cancer. If you have any questions, you can consult online experts.