Understanding Erythematous Mucosa in the Stomach Causes of Erythematous Mucosa in the Stomach Erythematous mucosa refers to the reddening of the stomach lining. There can be several causes behind this condition: Infection: Bacterial or viral infections, such as Helicobacter pylori, can lead to inflammation and redness of the stomach lining. Gastroesophageal reflux disease (GERD): The […]