The expanding worldwide burden of colorectal cancer (CRC) is a significant public health issue. Understanding the shift in the geo-demographic, socioeconomic, environmental, and biogenetic distribution of CRC is paramount. The Human Development Index (HDI) measuring life expectancy, education, and gross national income is a composite index comparing health outcomes between countries. This has been shown to be a useful comparison tool in measuring the health dimension among high, middle, and low-income countries. CRC has a wide global distribution in incidence and mortality with majority of cases occurring in countries with a high or very high HDI. However, in developing countries and in those undergoing rapid socioeconomic growth, there has also been a marked rise in CRC rates as well. This pattern is noted globally and seems to correlate with increase in a country's specific HDI. Additionally, another unique pattern of CRC incidence has emerged with more cancers being diagnosed in adults younger than 50 years old. Further investigation is needed to determine CRC risks reduction and implementation of primary prevention and early detection strategies within different country specific healthcare systems.Globally, improvement in healthcare equality, access to medical care and screening for CRC particularly in resource-limited (low HDI) countries is essential.

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