Acute gastritis refers to the acute inflammation of the gastric mucosa caused by various etiologies. In severe cases, the lesions may involve the submucosal and muscular layers, and can even reach the serosal layer. Clinically, according to different causes and pathological changes, it is divided into acute simple gastritis, acute erosive gastritis, acute corrosive gastritis, and acute suppurative gastritis. Among them, clinically...