![]() ![]() The compression of the stomach can place pressure on all of the sphincters of the stomach, including the pyloric sphincter and LES.Ī hiatal hernia is more common in older adults and people with obesity. Hiatal HerniaĪ hiatal hernia occurs when part of the stomach protrudes up into the chest through a thin muscle called the diaphragm. Bile reflux can occur on its own but is common with acid reflux. Other symptoms of bile reflux include diarrhea, heartburn, abdominal pain, and a foul taste in the mouth. A peptic ulcer can also damage the pyloric sphincter either directly (by causing tissue injury) or indirectly (by increasing stomach pressure which disrupts the valve). There are many reasons why this might occur:īile reflux occurs when the muscular passageway between the stomach and small intestine-called the pyloric sphincter-malfunctions, allowing bile to seep into the stomach and then the esophagus.īile reflux is similar to acid reflux in which stomach acids seep from the stomach into the esophagus because of a dysfunctional sphincter.īile reflux often develops after gallbladder surgery and other upper gastrointestinal surgeries (like a gastric bypass). Yellow vomit occurs when bile backflows from the small intestine into the stomach. During vomiting, the muscular passageway that separates the stomach from the esophagus-known as the lower esophageal sphincter (LES)-will spontaneously open, propelling any contents out of the stomach.
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