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Carcinomaofrectum
Carcinomaofrectum is referred to as colorectal cancer, is a common malignant tumor in the gastrointestinal tract, the incidence is second only to stomach and esophageal cancer, is the most common part of colorectal cancer (about 60%). The vast majority of patients are over 40 years old, and about 15% are under 30 years old. Male is more common, the ratio of male to female is 2-3:1 according to clinical observation, it is found that part of colorectal cancer occurs from rectal polyps or schistosomiasis; chronic inflammation of the intestine, some can induce canceration; high-fat and high-protein diet causes an increase in cholic acid secretion, the latter is decomposed into unsaturated polycyclic hydrocarbons by intestinal anaerobes, which can also cause cancer.
Cooperative medical institution of
Beijing Cancer Hospital
