Abstract:
This review paper provides an update on the burden of global cancer by estimating the mortality rates and incidences. Cancer is one of the main causes of morbidity and mortality globally. It is considered that by 2020, the rate of the new cases of cancer will raise to more than 15 million, including death raising to 12 million. The burden of cancer incidence and mortality will increase worldwide. When in the United States and many other western countries, the most cancer incidences and mortality rates for most cancers (with colorectum cancer, breast cancer, lung cancer and prostate cancer) are declining, and then in the several less developed and economically transitioning countries, those are developing. The reasons for increasing in the less developed and economically transitioning countries are the acceptance of unhygienic westerly lifestyles such as smoking, taking tobacco, taking alcohol, deficiency of exercise, industrial exposures, physical inactivity etc. Already in some of these countries, the rates for colon and lung cancers have surpassed. The most developing countries are getting affected by cancer related to infectious agents, such as liver, stomach, and cervix cancers. In this review, we discuss the incidence and mortality of this changing world for selected common cancers and the potential for cancer prevention in developing countries.