What are the causes of rectal cancer

Due to the fast pace of modern people's lives and a high-fat, high-protein, low-fiber diet, more and more people are suffering from rectal cancer. In recent years, the incidence of this disease has remained high, so it is important to explore the causes of rectal cancer and what factors are related to it, so as to control the causes of rectal cancer and reduce the incidence of this disease.

The causes of rectal cancer are as follows:

1. Malignant transformation of benign tumors: Clinically, many patients suffer from rectal cancer due to the malignant transformation of colorectal adenomas. Therefore, it can be proved that the incidence of rectal cancer is closely related to colorectal adenomas, and everyone should be vigilant.

2. Polyps: After exploring the causes of rectal cancer, it was found that most patients develop the disease based on polyps. In the normal population, the incidence of polyps is 5% to 10%, and in people over 45 years old, the incidence is only 10%. The incidence of rectal polyps increases with people's age.

3. Eating habits: The high incidence areas of rectal cancer are generally developed countries. Perhaps this has nothing to do with regional and racial genetic factors. The main difference is different eating habits and nutritional methods, such as high protein, fat, and refined carbohydrates in the diet, and less low-fiber foods.

4. Inflammatory stimulation: This is one of the common causes of this disease. Long-term stimulation from diseases such as chronic ulcerative colitis can cause intestinal mucosal damage and exudation, and the repair process can cause fibrous tissue hyperplasia, which thickens the intestinal wall, leading to intestinal stenosis, epithelial cell metaplasia, and the formation of chronic granulomas and multiple polyps.

5. Genetic factors: If there are patients with adenomatous polyposis in the family, the chance of developing rectal cancer is higher. Hereditary non-polyposis colorectal cancer is also an important cause of rectal cancer.