Changes in eating habits lead to colorectal cancer

With the improvement of living standards, people tend to eat more meat, protein and fat, which leads to the high incidence of rectal cancer! What are the main causes of rectal cancer? Let's ask experts to tell us in detail about the causes of rectal cancer.

1. 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 (HNPCC), also known as Lynch syndrome. The specific manifestations are: (1) three or more family members have colorectal cancer, of which two or more are from the same generation; (2) at least two generations have the disease; (3) at least one of them was diagnosed with colorectal cancer before the age of 50.

2. 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%.

3. 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 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.

The above is the introduction of "Causes of Rectal Cancer", for reference only. Genetics and bad lifestyle habits make rectal cancer more and more frequent, causing great hidden dangers to our health. If you still have doubts about the causes of rectal cancer, you may wish to consult an expert online.