Causes
A hiatal hernia develops when the muscle tissue around the hiatus weakens or the opening enlarges. Contributing factors include:- Age-related changes: The diaphragm and its supporting tissues naturally lose elasticity over time.
- Increased pressure in the abdomen: Obesity, pregnancy, chronic coughing, repeated heavy lifting, and straining with constipation all push the stomach upward.
- Injury or surgery: Trauma to the area or prior operations can weaken the hiatus.
- Being born with a larger hiatus: Some people simply have a wider opening from birth.
Symptoms
Many hiatal hernias — particularly small ones — cause no symptoms and are found incidentally on imaging or endoscopy. When symptoms occur, they are usually those of acid reflux, because the hernia weakens the natural valve between the esophagus and stomach:- Heartburn: Burning discomfort behind the breastbone, often worse after meals or when lying down; frequent heartburn overlaps with gastroesophageal reflux disease (GERD).
- Regurgitation: Sour fluid or food coming back up into the throat or mouth.
- Throat symptoms: Hoarseness, throat clearing, or a lump-in-the-throat feeling, as seen in laryngopharyngeal reflux.
- Difficulty swallowing or early fullness: More common with larger hernias.
- Chest or upper abdominal discomfort: A large paraesophageal hernia can cause pressure-like pain after eating.
Diagnosis
A hiatal hernia may be identified on a barium swallow X-ray, an upper endoscopy, or a CT scan done for another reason. Endoscopy has the advantage of directly examining the esophagus and stomach lining, checking for irritation, gastritis, or ulcers. Esophageal manometry and pH testing are sometimes used when surgery is being considered or symptoms are hard to explain.Treatment
Treatment targets symptoms, not the hernia's mere presence.- Lifestyle measures: Smaller meals, avoiding food within three hours of bedtime, elevating the head of the bed, limiting trigger foods, losing excess weight, and stopping smoking.
- Acid-reducing medications: Proton pump inhibitors such as omeprazole, esomeprazole, or pantoprazole are the most effective medicines for reflux symptoms; H2 blockers such as famotidine help milder cases.
- Surgery: Reserved for large paraesophageal hernias or reflux that persists despite optimal medical therapy. Repair typically involves pulling the stomach back into the abdomen, tightening the hiatus, and often a fundoplication to reinforce the valve.
When to Seek Immediate Care
Sudden severe chest or upper abdominal pain, retching without being able to vomit, or inability to swallow can signal a strangulated paraesophageal hernia and is an emergency. Remember also that chest pain should never be attributed to a hernia until heart problems have been ruled out — call 911 for new or unexplained chest pain. Most people with a hiatal hernia do well with simple measures and, when needed, acid-suppressing medication. The internal-medicine team at Zimmer Medical Group can evaluate your symptoms and tailor a long-term reflux plan, including whether an endoscopy or a surgical opinion makes sense for you.Living With a Hiatal Hernia
A hiatal hernia found on a scan does not by itself need treatment, and the reflux it causes rarely needs more than the measures already described when they are applied consistently. What follows is how to make the medication work, when the hernia rather than the acid is the problem, and what else produces the same symptoms.
Take the acid reducer the right way
Proton pump inhibitors such as omeprazole or pantoprazole work only when taken thirty to sixty minutes before a meal, usually breakfast, because they block the acid pumps as they switch on. A dose taken at bedtime or with food does much less. The lowest dose that controls symptoms is the target, and after a few months of relief many people can step down to on-demand use; stopping abruptly causes a temporary rebound of acid, so a taper is planned. Our long-term PPI use article covers what to watch for when years of treatment are needed.
Meals and posture do more than most expect
A large meal is the single most reliable trigger, because a full stomach pushes further through the hiatus. Smaller portions, no food in the three hours before lying down, and raising the head of the bed on blocks rather than stacking pillows reduce nighttime reflux measurably. Losing even ten pounds lowers the abdominal pressure that drives the stomach upward, and it is the one measure that treats the mechanics rather than the acid; the obesity page covers the options.
When the hernia itself needs attention
Trouble swallowing, food sticking, early fullness, shortness of breath after meals, or iron-deficiency anemia without another cause point to a large hernia rather than simple reflux. A slowly bleeding erosion where the stomach rubs against the diaphragm is a common cause of unexplained anemia in older adults and is found only by endoscopy. Those findings, or reflux that persists despite daily treatment, are when a surgical opinion is reasonable; repair is now done laparoscopically, with a short hospital stay.
What it is confused with
Chest pressure after a meal that also comes on with exertion is treated as angina until proven otherwise, and our GERD versus heart attack article explains the features that separate them. Food sticking in a younger adult can be eosinophilic esophagitis, an allergic condition that a PPI alone will not fix. A persistent chronic cough or hoarseness without heartburn may be laryngopharyngeal reflux, which responds more slowly and often needs a higher dose.
Long-standing reflux and the esophagus
Years of reflux, particularly in men over 50 with a large hernia, can change the lining of the lower esophagus into Barrett's esophagus, which is why a single endoscopy is recommended for people with long-standing symptoms and risk factors even when the medication works. Our gastrointestinal team arranges endoscopy and, when it is needed, the surgical consultation. The NIDDK and MedlinePlus publish patient guidance on hiatal hernia and reflux.
If your reflux needs daily medication and you have never had an endoscopy, or food has started to stick, schedule a visit.