How does rectal cancer develop

There are many causes of colorectal cancer, mainly due to factors such as diet, certain occupations, and the occurrence of certain diseases. The specific causes are as follows:

1. Dietary factors

In order to uncover how colorectal cancer develops, epidemiological experts have done a lot of research, proving that dietary factors are an important pathogenic factor in the onset of tumors, and 70% to 90% of cancer patients are related to diet and lifestyle.

2. Occupational factors

Research has found that occupational factors and the incidence of colorectal cancer need to be alerted. Many colorectal cancer patients are workers who produce asbestos insulation materials. Asbestos fibers can penetrate the human intestinal mucosa. The mortality rate of colorectal cancer is high in industries such as metal cotton yarn or industry, leather manufacturing, and textiles.

3. Disease Factors

In the process of understanding how rectal cancer is formed, it is found that colorectal adenoma is a precancerous lesion. Most researchers believe that more than 80% of patients have adenoma. Therefore, adenoma should be removed in time to prevent canceration. However, some patients will regenerate new adenomas after adenoma removal.

4. Ulcerative colitis

This disease is more common in Europe and America, but this year the incidence rate in my country has begun to rise. Studies have found that the incidence rate of colorectal cancer in these people is 5.7 times that of healthy people, so the risk of colorectal cancer is higher than that of the general population.