Breast, stomach and colorectal cancer screening in Korea.

Some issues and activities in cancer screening in Korea are briefly described, in particular those in stomach, breast and colorectal screening. There is randomized trial evidence for the efficacy of screening for breast cancer and colorectal neoplasia. Stomach cancer screening is as yet unproven, but the disease is very common in Korea and one of the leading causes of death. There are major related issues to be addressed by the country in the near future. These include improving uptake and coverage rates, quality control and evaluation. Colorectal cancer will be a major concern as its incidence and mortality rates have been increasing rapidly in recent years.