Abstract：To retrospect the classification about chronic gastritis in China and foreign county,compared with the Rome criteria of functional dyspepsia(FD).The flow path of diagnosis and treatment as well as the guidelines or consensus about FD,the changes of indication about Helicobacter pylori(HP),the concept of FD and non ulcer dyspepsia (NUD),and the distinguish between FD and organic dyspepsia(OD),in order to introduce the emphasis about FD.Some viewpoints and evaluation will be come up by authors.
