Colorectal cancer epidemiology and risk factors

Colorectal cancer is an important health problem, being the third most frequent cancer pathology both in men and women. Programmes have been developed to decrease CRC incidence and mortality, including primary prevention strategies focusing on population education regarding diet and physical activity and secondary prevention programmes such as screening. Modifiable risk factors are known to be diet, obesity, smoking, alcohol and read meat consumption. Non-modifiable risk factors are age, inflammatory bowel disease, genetic syndromes and family history of colorectal cancer.