Gastritis is a mechanism say to very complex disease and occurs for several reasons. For each cause, the cause of acid and water during digestion in the stomach too much to destroy the spores invade the tissue nu-food.
Having said that, the stomach is a very complex disease mechanisms. And for several reasons Each cause is a cause of acid and pepsin in the stomach too. And to destroy the lining of the stomach.
I must say stomach ailments have disease mechanism very complex and occur for several reasons. Each cause, will cause the condition with acid and gastric juice, too. To destroy the lining of the stomach.