Gastritis is an inflammation, irritation, or erosion of the lining of the stomach. It can occur suddenly or gradually. Gastritis can be caused by irritation due to excessive alcohol use, chronic vomiting, stress, or the use of certain medications such as aspirin or other anti-inflammatory drugs. It may also be caused by any of the following:
Helicobacter pylori (H. pylori): A bacteria that lives in the mucous lining of the stomach; without treatment, the infection can lead to ulcers, and in some people, stomach cancer. Pernicious anemia is a form of anemia that occurs when the stomach lacks a naturally occurring substance needed to properly absorb and digest vitamin B12.
Treatment for gastritis usually involves taking antacids and other drugs (such as proton pump inhibitors or H-2 blockers) to reduce stomach acid, Avoiding hot and spicy foods. The incidence and Prevalence of this disease is varying among different populations. It is reported that, in Norway, Gastritis affects 20-29% of the total population. This disease mainly affects the age group of 20-50 years.