The development of rectal cancer is currently believed to be related to dietary factors, genetic factors, age factors, chemical carcinogens, digestive tract diseases, parasites and so on.
1. Dietary factors: the development of rectal cancer is closely related to dietary factors. People with low-fiber diet, high-fat and high-protein diet, and lack of trace elements and vitamins are more likely to develop rectal cancer.
2. Genetic factors: People with family history of rectal cancer have a higher risk of rectal cancer in their immediate family members than normal people.
3. Age factor: patients with rectal cancer are usually older than 50 years old.
4. Chemical carcinogens: people who like to eat fried and baked food are more likely to develop rectal cancer.
5. Digestive diseases: patients suffering from ulcerative colitis, Crohn’s disease, rectal adenoma, rectal polyps will have a higher chance of developing colon cancer.
6. Parasites: Suffering from schistosomiasis is considered to be one of the triggers of rectal cancer.
High-risk groups are recommended to have regular medical checkups for early detection and treatment to prolong survival.