What are the causes of rectal cancer

In clinical practice, the incidence of rectal cancer is second only to gastric cancer and esophageal cancer. Therefore, rectal cancer is also one of the most difficult diseases. If you want to cure rectal cancer as soon as possible, it is very important to find the right cause. Next, let's take a look at the factors that lead to rectal cancer .

1. Genetic factors: In the families of patients with rectal cancer, there are many with a family history of cancer and many digestive tract tumors. Due to the change of genes in normal cells, patients with rectal cancer inherit a susceptibility in their bodies. Coupled with certain stimulating factors, tissue cells grow rapidly and develop into cancer. Cell genetic genes mutate and become malignant cells with genetic characteristics, which manifests as a family history of rectal cancer. Therefore, this is one of the causes of rectal cancer.

2. Dietary factors: This is also a common cause of colorectal cancer. The so-called Western diet, which is high in fat, protein and low in fiber, is believed to be related to the occurrence of colorectal cancer. In contrast, the incidence of colorectal cancer is low when people consume rough food that is low in fat and rich in fiber. Therefore, if the dietary structure changes, the incidence of colorectal cancer will increase. This is because high-fat and high-protein foods can increase the amount of methylcholanthracene in feces, increase bile acid secretion, and be decomposed into unsaturated polyunsaturated hydrocarbons by anaerobic bacteria in the intestines. Both of these substances are carcinogens, thus causing colorectal cancer.

3. Inflammatory bowel disease: Ulcerative colitis and Crohn's disease are caused by the destruction of intestinal mucosa, the proliferation of ulcer repair, and the formation of granulation tissue, which leads to canceration and rectal cancer. Schistosomiasis eggs are deposited in the rectal mucosa, and chronic inflammation stimulates canceration, which is also a cause of rectal cancer.

4. Others: such as immune deficiency, genetic factors, viral infection, and the effects after gastrectomy and cholecystectomy, etc., can easily lead to the occurrence of rectal cancer.

The above is a detailed description of the causes of rectal cancer. I hope it can help everyone understand the knowledge of rectal cancer and do a good job in preventing rectal cancer. If you have other questions about rectal cancer, you can contact our online experts to answer your questions.

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.