Hiatal Hernia: Why It Causes Heartburn — and When Surgery Actually Helps

Most hernias announce themselves as a bulge you can see. The hiatal hernia is the exception — it hides inside your chest, produces no lump at all, and instead announces itself as heartburn that won’t quit, food that sticks on the way down, or a cough that only shows up at night. Patients are frequently surprised to learn that the reflux they’ve medicated for years traces back to a hernia, and even more surprised to learn it’s fixable. As a general surgeon in Los Angeles, hiatal hernia repair is one of the operations I discuss most — and misconceptions about it outnumber the facts. Here’s the straight version.

What a Hiatal Hernia Actually Is

Your esophagus passes from the chest into the abdomen through an opening in the diaphragm called the hiatus. In a hiatal hernia, that opening stretches, and the top of the stomach slides up through it into the chest. The common “sliding” type (about 95% of cases) moves up and down; the less common paraesophageal type stays trapped beside the esophagus — that one matters more, and I’ll come back to it. The consequence of either is mechanical: the diaphragm normally acts as a backup valve reinforcing the lower esophageal sphincter, and once the stomach slides above it, that reinforcement is gone. Acid flows uphill with far less resistance — which is why hiatal hernias and GERD travel together so consistently, as the NIH’s overview of GERD explains.

Symptoms: More Than Heartburn

Classic signs are heartburn and regurgitation, worse when lying flat or bending over. The sneakier presentations I see in clinic: a chronic nighttime cough or hoarseness (acid reaching the throat), the sensation of food sticking behind the breastbone, chest pressure that has already earned a cardiac workup, early fullness after small meals, and — in larger hernias — unexplained anemia from slow bleeding where the stomach is pinched. Small hiatal hernias frequently cause nothing at all and are found incidentally on imaging; those generally need no treatment. A summary of the condition’s spectrum is available through the NIH’s MedlinePlus hiatal hernia resource.

Treatment Ladder: From Habits to the Operating Room

The point patients most need to hear: medication treats the acid, not the anatomy. A PPI can make a hiatal hernia comfortable, and for many people that’s a perfectly good long-term answer. But if you regurgitate food at night, need ever-increasing doses, can’t come off medication without misery, or have esophageal damage on endoscopy, the hole in the diaphragm is the problem — and no pill closes it.

When Surgery Actually Helps (and How It’s Done)

Modern hiatal hernia repair is laparoscopic: several small incisions, a camera, and about 1 to 2 hours of operating time. I bring the stomach back below the diaphragm, close the widened hiatus with sutures, and in most cases add a fundoplication — wrapping the top of the stomach around the lower esophagus to rebuild the one-way valve. Large defects sometimes warrant mesh reinforcement, a decision I make selectively and discuss openly, including the trade-offs the FDA outlines for hernia surgical mesh. Most patients go home the same day or after one night, live on a soft diet for 2 to 3 weeks while swallowing recalibrates, and are back at desk work within 1 to 2 weeks. Done for the right reasons, the results are excellent: durable reflux control and, for most, freedom from daily medication. One honest caveat — a temporary sensation of fullness or difficulty burping is common early after fundoplication and settles for the large majority.

The One Version You Shouldn’t Watch and Wait On

Paraesophageal hernias — where part of the stomach sits trapped beside the esophagus in the chest — deserve their own paragraph. They can twist or strangle, cutting off blood supply, which converts a scheduled operation into an emergency. Progressive chest pain after meals, retching without vomiting, and unexplained anemia in a patient with a known large hernia are warning signs I take seriously. If imaging has ever shown you a “large” or “type III/IV” hiatal hernia, have a surgical consultation even if your symptoms feel manageable — the conversation costs nothing and the alternative occasionally costs a stomach. The same judgment applies across the hernia family, from inguinal hernias to the umbilical hernias I’ve written about previously: watchful waiting is legitimate strategy, not neglect — but only when the anatomy allows it. And if your reflux stems from prior weight-loss surgery rather than a hiatal defect alone, that’s a different conversation handled with my bariatric colleagues at Healthy Life Bariatrics.

Frequently Asked Questions

Can a hiatal hernia heal on its own?

No — the widened opening in the diaphragm doesn’t tighten itself. Small hernias often stay quiet for a lifetime and need nothing, but the anatomy is permanent without repair. Treatment decisions are driven by symptoms, not by the hernia’s mere existence.

How do I know if my heartburn is from a hiatal hernia?

You can’t tell from symptoms alone. Endoscopy or imaging makes the diagnosis, typically ordered when reflux resists medication, returns immediately when medication stops, or comes with swallowing difficulty, regurgitation, or anemia. A surprising share of “stubborn GERD” turns out to be hernia-driven.

Do I have to have surgery for a hiatal hernia?

Usually not. Lifestyle measures and acid suppression manage most sliding hernias well. Surgery earns its place when symptoms defeat medication, when you regurgitate despite treatment, when esophageal damage appears on endoscopy, or when the hernia is the paraesophageal type with trapping risk.

What is a fundoplication, and will I still be able to burp?

It’s the valve-rebuilding step — the top of the stomach is wrapped around the lower esophagus to stop reflux at the source. Early fullness and difficulty burping are common for a few weeks and settle for most patients; modern partial-wrap techniques reduce this further when anatomy suits them.

How long is recovery after laparoscopic hiatal hernia repair?

Most patients go home within 24 hours, spend 2 to 3 weeks on a progressively textured soft diet, return to desk work in 1 to 2 weeks, and lift heavy again at about 6 weeks. Reflux improvement is typically noticeable almost immediately.

Does insurance cover hiatal hernia surgery?

Generally yes — this is medically indicated surgery, not elective cosmetic work. Documented symptoms, endoscopy findings, and failed medical therapy support authorization, and my office verifies your specific plan before scheduling. Financing options exist for cost-sharing balances.

The Bottom Line

A hiatal hernia is plumbing, not mystery: the stomach has slipped through a stretched opening, the backup valve is gone, and acid goes where gravity and pressure send it. Medication can quiet it; only repair fixes it; and one variant — the paraesophageal type — shouldn’t wait. If your heartburn has stopped responding, or an imaging report ever mentioned a hiatal hernia, a surgical opinion will tell you which rung of the ladder you’re actually on: request a consultation with my Los Angeles general surgery practice.

* Illustrative images on this page are models, not actual patients. Real patient results are shown in our Before & After gallery.