Introduction: Four main causes of rectal cancer

The cause of rectal cancer is one of the topics that many people are very concerned about nowadays, because rectal cancer is a common malignant tumor in the gastrointestinal tract. Understanding the cause of rectal cancer can better prevent rectal cancer. So, what is the cause of rectal cancer? The details are as follows:

1. Dietary structure (acidic and alkaline foods) as the cause of colorectal cancer

Cancer patients have a typical acidic constitution, and the origin of acidic constitution is precisely excessive intake of acidic foods or incorrect lifestyle habits. Cancer cells are typical acid-loving cells. The formation of an acidic constitution is the cancerization of normal cells, which is the doubling of the growth of already formed cancer cells. 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, regions and groups with a high proportion of animal fat and protein in the diet 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 the metabolites of animal fat, bacterial decomposition products, and factors such as slowed intestinal motility and increased intestinal toxin absorption due to a low-fiber diet.

2. 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.

3. Chronic colorectal inflammation

Acidic constitution causes granulomas caused by chronic ulcerative colitis and chronic schistosomiasis, which are directly related to the occurrence of colorectal cancer. The causes of colorectal cancer include that 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

In addition to patients with colorectal cancer caused by familial polyposis or malignant transformation of ulcerative colitis, about 5-10% of other colorectal cancer patients have a clear family history of tumors, collectively known as hereditary nonpolyposis colorectal cancer (Hereditary Nonpolyposis Colorectal Cancer, HNPCC), also known as Lynch syndrome. This is one of the causes of rectal cancer.

The above is an introduction to the four main causes of rectal cancer. It is for your reference only. I believe that everyone has some understanding of the causes of rectal cancer. I hope everyone can do a good job in preventing rectal cancer. If you have any questions about the causes of rectal cancer, please consult online experts!

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!