GASTRITISINCHILDREN,ChongqingChildrensHospitalDivisionofInfectiousDiseaseandGastroenterology,2,GastritisAcuteGastritisChronicGastritis,3,AcuteGastritis,4,DiffinationEtiology&PathogenesisPathology,Acutegastritis,5,FoodandDrugs:Severestressstate:Acuteinfection:Corrosivesubstances:,VagalstimulationAcidsecretionReleaseofvasoactiveamineandcytokinesMicrocirculationdisdurbanceGastricmucosalischemiaImpairmentofmucosalandmucousbarriersBack-diffusionofhydrogenions,Shock,hydrocephalus,suddentrauma,seriou