What is a common cause of gastritis?

Gastritis, which is the inflammation of the stomach lining, can indeed be caused by various factors, and each option listed contributes to this condition. Viral infections can lead to gastritis by triggering an inflammatory response in the stomach lining. Certain bacteria, most notably Helicobacter pylori, are widely recognized as a significant cause of gastritis due to their ability to disrupt the mucosal barrier and provoke inflammation. Additionally, alcohol consumption is known to irritate and damage the gastric mucosa, resulting in inflammation and contributing to the development of gastritis.

Choosing "All of the above" encompasses all these potential causes, highlighting the multifactorial nature of gastritis. This illustrates the importance of recognizing various etiological factors when considering gastrointestinal health. Each cause can act independently or in combination with others, which is why acknowledging the full range of possibilities is essential for understanding the condition comprehensively.