Published online Jan 21, 2014. doi: 10.3748/wjg.v20.i3.706
Revised: November 7, 2013
Accepted: December 3, 2013
Published online: January 21, 2014
Core tip: In Asia, numerous studies reported that idiopathic ulcers accounted for a small percentage of all ulcers in the 1990s, but in the 2000s, multiple studies reported that the proportion of idiopathic ulcers had reached 10%-30%, indicating that the incidence of idiopathic ulcers in Asia has also been rising in recent years. As it is expected that Helicobacter pylori infection rates in Asia will decline further in the future, measures to treat idiopathic ulcers will also likely become more important.