This is a common condition, in 'which the upper part of the stomach which usually lies in the belly, slides up to the chest. Usually there are no symptoms at all, but sometimes there may be acid reflux heartburn, and difficulty swallowing as the valve at the top of the stomach becomes less effective. An endoscopy and a barium X-ray test will show up a hiatus hernia. An endoscopy is performed under light sedation and a small tube is swallowed into the stomach to examine the area. This is important as a hiatus hernia is rarely the only cause of symptoms.
Treatment is aimed at associated conditions and reducing acid reflux.