The human stomach operates in an environment with a lumen pH between 1 and 3, yet its own tissues remain intact. This resilience comes from a multilayered defense system: a mucus-bicarbonate barrier ...

Ultrasound can’t detect stomach ulcers as easily as other methods, like upper endoscopy. But since ultrasound is noninvasive, it might be beneficial in some situations, like detecting large ulcers or ...

There are four types of stomach ulcers. Each type occurs on a different part of the stomach lining. These are different from duodenal ulcers, although they develop nearby and have similar causes and ...

Stomach cancer, also called gastric cancer, develops when cells in the stomach lining begin to grow out of control. People usually don’t experience any symptoms in the early stages, which makes early ...