Most people who experience frequent heartburn chalk it up to what they ate or how late they ate it. They adjust their diet, prop up their pillow at night, and push through. And for a lot of people, that’s enough.
But for some, the heartburn never really goes away. It keeps coming back worse after meals, worse at night, worse when bending over, and the usual tricks stop working. That persistent, treatment-resistant heartburn might not just be acid reflux. It could be a sign of a structural issue: a hiatal hernia.
Here’s what you need to know about the difference, and the six warning signs that suggest your heartburn deserves a closer look.
What Exactly Is a Hiatal Hernia?
Your diaphragm, the large dome-shaped muscle that separates your chest from your abdomen, has a small opening called the hiatus. This is where your esophagus passes through on its way to connect to the stomach. Normally, everything sits snugly in place.
A hiatal hernia occurs when the upper portion of the stomach pushes through that opening into the chest cavity. This disrupts the lower esophageal sphincter (LES), a muscle that normally acts as a one-way valve, keeping stomach acid from flowing back into the esophagus.
When the LES is compromised, acid and undigested food can travel upward, which is exactly what causes the familiar burn of heartburn and acid reflux.
Hiatal hernias are more common than many people realize. Research suggests that up to 60% of adults over the age of 50 have some degree of hiatal hernia, though the vast majority have no symptoms at all.
It’s the ones that do cause symptoms, especially the ones that go unrecognized, that become a problem over time.
How Is a Hiatal Hernia Different from Regular Heartburn?
This is where it gets confusing. A hiatal hernia and heartburn (or GERD — gastroesophageal reflux disease) often share the same symptoms. That’s because a hiatal hernia is one of the most common structural causes of GERD.
The difference is this: heartburn is a symptom. GERD is a chronic condition involving repeated acid reflux. A hiatal hernia is a physical condition in which part of your stomach is in the wrong place.
You can have GERD without a hiatal hernia. You can also have a small hiatal hernia without any symptoms. But when a significant hernia is present and untreated, it can cause chronic, worsening reflux that doesn’t respond well to typical management.
The only reliable way to confirm a hiatal hernia is through diagnostic imaging or an upper endoscopy, not by symptoms alone. But certain signs point more strongly to a structural issue than to simple acid reflux.
Here are six of them.
Warning Sign #1: Heartburn That Keeps Coming Back No Matter What You Do
Occasional heartburn after a heavy meal is completely normal. Heartburn that returns weekly, daily, or multiple times a day despite consistent changes to diet and eating habits is not something to brush off.
When heartburn is truly relentless, the underlying cause is often structural rather than dietary. A hiatal hernia physically impairs the valve between the stomach and esophagus, making acid reflux much more likely regardless of what you eat.
If you feel like you’ve tried everything and the burn keeps returning, that’s the body’s way of telling you the problem runs deeper than your last meal.
Warning Sign #2: Chest Pain That Mimics a Heart Attack
This one genuinely surprises people, and it causes real alarm when it happens. Chest pain from a hiatal hernia can feel startlingly similar to cardiac chest pain: pressure, tightening, or a burning sensation in the center of the chest, often after eating.
The pain is caused by acid in the esophagus or, in larger hernias, by compression of surrounding structures in the chest cavity. It typically appears during or shortly after meals and eases when the stomach empties.
That said, chest pain should always be taken seriously. If you experience severe, sudden chest pain, especially with shortness of breath, sweating, or radiating arm pain, seek emergency care immediately to rule out a cardiac cause.
If a cardiac source has already been ruled out and chest pain keeps occurring around mealtimes, a hernia evaluation makes sense.
Warning Sign #3: Food or Liquid Coming Back Up
Regurgitation, where partially digested food or liquid rises back into the throat or mouth, is distinct from the burning sensation of heartburn. It’s not just an uncomfortable feeling in the chest; it’s material actually moving in the wrong direction.
This happens because a hiatal hernia compromises the lower esophageal sphincter’s ability to stay closed. Stomach contents that should stay down can work their way back up, sometimes reaching as far as the back of the throat.
Patients often describe a sour or bitter taste, or suddenly finding liquid in their mouth without warning, particularly when lying down or bending over.
Frequent regurgitation that goes unaddressed can cause damage to the esophageal lining over time, which is why it’s worth investigating rather than simply tolerating.
Warning Sign #4: Difficulty Swallowing
A feeling that food is getting “stuck” on the way down, medically called dysphagia, is not a normal part of eating. When a hiatal hernia is large or if chronic acid reflux has caused inflammation and scarring in the esophagus, the passage can narrow over time, making swallowing increasingly difficult or uncomfortable.
Some people describe it as pressure in the chest mid-swallow, or the sensation of food sitting in the throat longer than it should. Others notice it more with solid foods than liquids.
Either way, difficulty swallowing warrants prompt evaluation, as it can indicate esophageal complications that need attention.
Warning Sign #5: A Chronic Cough, Hoarseness, or Frequent Sore Throat
Not all reflux causes a burning sensation. In many people, particularly those with what’s called “silent reflux,” acid travels high enough into the throat to irritate the voice box and upper airway without ever causing obvious chest discomfort.
The result can look like a chronic, dry cough that won’t respond to typical cough treatments—or persistent hoarseness, especially in the mornings.
Or a recurring sore throat without any sign of infection. These symptoms are easy to misattribute; allergies, post-nasal drip, and throat clearing are common explanations people try first. But when those explanations don’t pan out, reflux from a hiatal hernia is a real possibility worth investigating.
Warning Sign #6: Feeling Unusually Full or Short of Breath After Eating
This sign tends to catch people off guard because it doesn’t feel like classic heartburn. A larger hiatal hernia can compress the stomach or restrict the amount of food it can comfortably hold, leading to a sense of rapid fullness and a feeling “stuffed” after eating amounts that previously felt normal.
In some cases, particularly with larger hernias, the stomach can push against the diaphragm enough to affect breathing. Patients report feeling breathless after meals or difficulty taking a full, deep breath when their stomach is full.
If that pattern is familiar, especially combined with any of the other signs above, a structural evaluation is worth having.
When to See a Specialist
A good rule of thumb: if any of these symptoms are affecting your daily life, recurring more than twice a week, or haven’t improved despite lifestyle changes, it’s time to talk to a physician rather than manage it on your own.
Left untreated, a significant hiatal hernia can lead to complications, including esophageal inflammation, scarring that narrows the esophagus, or, in rare but serious cases, a strangulated hernia where blood supply to the stomach is cut off. That last scenario is a surgical emergency.
The encouraging news is that the diagnosis is straightforward; an upper endoscopy or barium swallow study can confirm or rule out a hiatal hernia. And for patients whose symptoms don’t improve with lifestyle changes, surgical repair is a well-established, minimally invasive procedure with excellent outcomes. Most patients are back to normal activity within a few weeks.
CGA Can Help You Get Answers
At CGA Weight Loss & Surgical Specialists, Dr. Chukwuma Apakama has extensive experience diagnosing and treating hiatal hernias and other general surgical conditions using minimally invasive techniques. With locations in Frisco, Irving, and Mansfield, TX, the team is equipped to evaluate your symptoms, identify the root cause, and walk you through every option available without the guesswork.
If persistent heartburn or any of the signs above sound familiar, don’t wait for symptoms to worsen. Getting the right diagnosis is the first step toward actual, lasting relief.
Schedule a consultation with Dr. Apakama today →
This content is intended for informational purposes only and does not constitute medical advice. Please consult with a qualified healthcare provider for diagnosis and treatment recommendations specific to your situation.