Colorectal Cancer Causes

Causes of colorectal cancer is unknown, and the following factors may be relevant:

1, environmental factors: especially dietary factors, the incidence of colorectal cancer with high-fat food consumption are positively related to grades. In addition, trace elements may also be associated with the lack of change in the lifestyle.

2, genetic factors: blood in patients with colorectal cancer die of this disease were significantly higher than the average person. Some colorectal adenomas, such as multiple family gonadal disease is a hereditary autosomal dominant disease, the family of up to 50% prevalence rate, such as non-treatment, after 10 years of age are suffering from colorectal cancer may be. Recently, there have been scholars of the tumor suppressor gene and the relationship between colorectal cancer study found that: colorectal cancer susceptibility and pathogenesis are related to genetic factors.

3, colorectal adenoma: the incidence of colorectal adenoma and colorectal cancer is the same. The incidence of colorectal cancer in patients with single adenoma is five multiplier than non adenoma, patients with multiple adenomas one time higher than single adenoma times.

4, chronic colon inflammation: cancer epidemic and the prevalence of schistosomiasis was positively associated region is generally believed that, due to intestinal schistosomiasis caused by inflammatory changes, which occur as part of cancer. Other chronic intestinal inflammation is also the possibility of cancer, such as ulcerative colitis, about 3% ~ 5% cancerous.