Why do people get rectal cancer?

The best time to treat cancer is in the early stage when cancer cells have not metastasized or spread. Treatment during this period can achieve the best effect of curing cancer. However, due to the hidden nature of rectal cancer, the symptoms of early rectal cancer patients are extremely subtle. Clinically, rectal cancer patients who have obvious symptoms are mostly in the middle and late stages. Here, we remind all friends who are related to rectal cancer to pay attention. Even if you don’t consider yourself, you should consider your family. Your health is the health of your family.

Causes of Rectal Cancer

It is still not very clear, but most people think it is related to food or genetics. In the past decade, various studies have proved that the intake of acidic food is the culprit of cancer, and cancer is one of the representatives of acidic body constitution. In terms of food, the intake of meat, protein and fat has increased a lot, and there is a clear trend of colorectal cancer. There are also many patients in their thirties who suffer from colorectal cancer.

Chronic rectal inflammation

Chronic rectal inflammation is a major cause of rectal cancer. For example, 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%.

Rectal adenoma cancer

The carcinogenesis of rectal adenoma is the direct cause of rectal cancer.

Diet and carcinogens

Diet and carcinogens also play a certain role in colorectal cancer. 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.

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, two or more of whom are from the same generation;

(2) At least two generations of the same family have been diagnosed with the disease;

(3) At least one of them was diagnosed with colorectal cancer before the age of 50.

(3) At least one of them was diagnosed with colorectal cancer before the age of 50.

The above is an introduction to "Why do people get rectal cancer?" When the above symptoms appear, patients should go to a regular hospital for treatment. Early detection and early treatment can effectively cure rectal cancer. People who are related to the pathogenic factors of rectal cancer are advised to take preventive measures for rectal cancer. If you have other questions about rectal cancer, please consult our experts online or call for consultation.

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