The specific causes of rectal cancer

With the development of modern medicine, the treatment of cancer has been greatly improved. For rectal cancer, it is necessary to detect and treat it early. Understanding the causes of rectal cancer is very beneficial to the treatment of rectal cancer. So what are the causes of rectal cancer ? The following is a detailed answer from relevant experts.

1. Chronic rectal inflammation:

Chronic ulcerative colitis and granulomas caused by chronic schistosomiasis are directly related to the occurrence of colorectal 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%. This is the main cause of rectal cancer.

2. Rectal adenoma canceration:

The cause of colorectal cancer is also related to diet and carcinogens. Epidemiological studies have shown that the occurrence 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 occurrence 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. Genetic factors:

Except for patients with colorectal cancer caused by familial polyposis or malignant transformation of ulcerative colitis, among other colorectal cancer patients, about 5-10% of patients have a clear family history of tumors, collectively referred to as hereditary non-familial polyposis colorectal cancer, also known as syndrome.

The above is an introduction to the causes of rectal cancer. I believe everyone should have a certain understanding of rectal cancer. If you want to know more about rectal cancer, please consult online experts.

For more information, please visit the rectal cancer disease special topic at http://www..com.cn/zhongliu/zca/ or consult an expert for free. The expert will then give a detailed answer based on the patient's specific situation.