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Functional dyspepsia (dis-PEP-see-uh) refers to symptoms of indigestion that include bloating, belching, heartburn, nausea, feeling extremely full after eating very little food, and ulcer-like discomfort. Although it can mimic an ulcer, functional dyspepsia doesn’t damage the stomach or esophagus as an ulcer does. Functional dyspepsia is relatively common - about 20 percent of people worldwide suffer from it. The condition is chronic, meaning it persists or frequently recurs.
Gastroparesis, also called delayed gastric emptying, is a disorder in which the stomach takes too long to empty its contents. Normally, the stomach contracts to move food down into the small intestine for digestion. The vagus nerve controls the movement of food from the stomach through the digestive tract. Gastroparesis occurs when the vagus nerve is damaged and the muscles of the stomach and intestines do not work normally. Food then moves slowly or stops moving through the digestive tract.
H. pylori Peptic Ulcer
A peptic ulcer is a sore on the lining of the stomach or duodenum, which is the beginning of the small intestine. Peptic ulcers are common: One in 10 Americans develops an ulcer at some time in his or her life. One cause of peptic ulcer is bacterial infection, but some ulcers are caused by long-term use of nonsteroidal anti-inflammatory agents (NSAIDs), like aspirin and ibuprofen. In a few cases, cancerous tumors in the stomach or pancreas can cause ulcers. Peptic ulcers are not caused by stress or eating spicy food, but these can make ulcers worse.