Hiatus Hernia

A hiatus hernia happens when part of the stomach moves up through the opening in the diaphragm used by the food pipe.

The diaphragm normally helps keep the stomach below the chest. When this opening is wider or the stomach moves through it, stomach contents may more easily travel back into the food pipe. Some people have no symptoms.

Heartburn is a very common presentation of hiatus hernia. Difficulty swallowing, excessive burping, and indigestion are also common presentations. Symptoms may be more noticeable after meals, when bending, or when lying down.

Seek prompt medical care for chest pain, food sticking, repeated vomiting, black stools, vomiting blood, unexplained weight loss, or worsening difficulty swallowing. These symptoms need assessment even if reflux has occurred before.

A hiatus hernia can develop when the muscles and tissues around the opening in the diaphragm become less supportive. Pressure within the abdomen can encourage part of the stomach to move upward. It is not caused by a single meal or an episode of heartburn.

Symptoms can come and go. They may settle with changes that reduce reflux, then return during periods of weight gain, constipation, persistent coughing, or heavy straining. A small sliding hernia is often managed without surgery, while a larger hernia may need closer review.

Hiatus hernia becomes more likely as supporting tissues change with age. Pregnancy, higher abdominal pressure, repeated heavy lifting, chronic cough, constipation with straining, and excess body weight can contribute. Having these factors does not confirm a hernia; assessment looks at symptoms and examination findings together.

A clinician will ask when symptoms occur, what you eat and drink, which medicines you use, and whether swallowing has changed. Tests may include an endoscopy to look at the food pipe and stomach, an X-ray study using contrast, or tests that measure reflux or movement in the food pipe.

These checks can also look for inflammation from acid exposure and for other causes of upper digestive symptoms.

Treatment focuses on reducing reflux and protecting the food pipe. A clinician may suggest changes to meal timing and sleep position, review medicines that may worsen reflux, or prescribe medicine that lowers stomach acid. Surgery is considered when symptoms remain troublesome, complications develop, or the hernia type requires repair.

New swallowing difficulty, chest pain, or symptoms that change despite treatment should be reviewed rather than managed by repeatedly changing medicines yourself.

Smaller meals can be easier than large meals. Avoid lying down soon after eating, and consider raising the head of the bed rather than using extra pillows alone. Notice personal triggers such as fatty foods, alcohol, coffee, or late meals, then make realistic changes that reduce symptoms.

Repeated acid exposure can inflame the food pipe and occasionally lead to narrowing that makes swallowing difficult. Some hernias can rarely become trapped or twisted, causing severe pain, persistent vomiting, or inability to swallow; these symptoms need urgent assessment.

Not every hiatus hernia can be prevented, but avoiding smoking, managing constipation, using safe lifting technique, and working toward a weight that is comfortable for you may reduce pressure that aggravates reflux. Treat a persistent cough with clinical advice rather than ignoring it.

A GP can assess new or recurring upper digestive symptoms and decide whether tests are appropriate. Referral to a gastroenterologist or upper gastrointestinal surgeon may be useful when symptoms are difficult to control, swallowing changes, or a repair is being considered.