Sores that evolve on the esophagus and stomach's internal walls and upper part of the small intestine are considered peptic ulcers. They are induced when stomach acid injures the interior wall of the mentioned digestive organs.
Sores that evolve on the esophagus and stomach's internal walls and upper part of the small intestine are considered peptic ulcers. They are induced when stomach acid injures the interior wall of the mentioned digestive organs.