Autoimmune gastritis (type a) the role of factors affecting the play's own immune cells, which in turn destroy the cells of the gastric mucosa. Gastritis type A, which is quite rare. Gastritis type b occurs when infection of the gastric mucosa by the bacterium Helicobacter pylori. Can last for years without showing any symptoms. Helicobacteria causes the development of stomach ulcers, and when running the for and stomach cancer. To gastritis of type C include reflux-gastritis. It is actually caused by the reflux of bile into the stomach from the duodenum.
Also gastritis is divided in its course into acute and chronic. In the chronic form of the area of the lesion larger and deeper than in acute. At the beginning of the disease is increased production of hydrochloric acid gastric juice. Further, there is atrophy of the gastric mucosa, which is accompanied by a decrease in the number of these substances.
In connection with these there are a number of peculiarities in the manifestation of symptoms of the disease.
Acute gastritis is characterized by: sharp, paroxysmal or persistent pain, which can occur either on an empty stomach or after some time after a meal; periodic or constant nausea; burning sensation in chest after eating - heartburn; vomiting with sour smell and taste; belching; sour; increase in salivation; constipation or diarrhea; loss of appetite.
For chronic gastritis with high acidity is characteristic: night and hungry pain in upper abdomen; vomiting and nausea; regurgitation of acidic content; the feeling of heaviness after eating; constipation.
For chronic gastritis with low acidity is typical: loss of appetite; unpleasant taste in the mouth; nausea in the morning; increased salivation; belching air, rumbling and transfusion in the abdomen, constipation.
The most accurate diagnosis will help you to put only a doctor. Do not delay treatment, if required.