Hiatus Hernia

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is a type of hernia where the upper part of the has been forced up through a in the . The is a sheet of muscle that separates the lungs from the abdomen. When a person takes a deep breath, the dome-shaped contracts and flattens. In doing this, the pulls air into the lungs. The left contains a small through which passes the tube-shaped esophagus that carries food and liquid to the . Normally this hole, called a hiatus, is small and fits snugly around the esophagus. The J-shaped sits below the diaphragm. It will cause heartburn and pain and because it pinches the , it may cause decreased acid production. In most cases a kinesiologist or a chiropractor can push down the .

In some people, the hiatus or hole in the diaphragm weakens and enlarges. It is not known why this occurs. It may be due to heredity, obesity, exercises such as weightlifting, or straining at stool. Whatever the cause, a portion of the stomach herniates, or moves up, into the through this enlarged hole. A hiatus hernia is now present. are very common, occurring in up to 60 percent of people by age 60.

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