What leads to the inflammation of the stomach lining in gastritis?

Gastritis is characterized by inflammation of the stomach lining, and its causes can vary, with both excessive alcohol consumption and infection being significant contributors.

Excessive alcohol consumption can irritate the stomach lining, leading to inflammation. Alcohol disrupts the mucosal barrier that protects the stomach lining from digestive acids, making it more susceptible to damage and inflammation.

Infection, particularly with Helicobacter pylori, is another common cause of gastritis. This bacterium can invade the stomach lining, causing an inflammatory response as the body attempts to eliminate the infection. This results in the typical symptoms of gastritis and can further exacerbate inflammation.

Since both excessive alcohol and infections are well-recognized causes of stomach lining inflammation, the combination of these factors explains the choice that both A and B are correct. Recognizing that various factors can contribute to gastritis underscores the need for a comprehensive understanding of potential causes when assessing and treating this condition.