Reflux, heartburn & GERD

Reflux is stomach contents moving up into the esophagus, heartburn is one symptom it can cause, and GERD is the diagnosis used when reflux causes troublesome symptoms or damage.

Some reflux happens in everyone, usually without being noticed — for example, after a large meal. Heartburn is the burning sensation behind the breastbone that reflux can produce. Not everyone with reflux feels heartburn, and not every burning chest sensation comes from reflux.

Gastroesophageal reflux disease (GERD) is the medical term for reflux that happens often enough, or forcefully enough, to cause symptoms that affect daily life or visible injury to the esophagus, such as inflammation or Barrett’s esophagus. The distinction matters because occasional heartburn usually needs nothing more than simple measures, while GERD may need a treatment plan and sometimes testing.

Common reasons include medication timing, reflux that is not mainly acid, a weakened reflux barrier such as a hiatal hernia — or symptoms that are not caused by reflux at all.

Proton pump inhibitors (PPIs) lower the acidity of what refluxes. They don’t stop reflux from happening. That explains several patterns:

• Timing. PPIs work best taken before a meal. Taking them at bedtime or after eating can blunt their effect.
• Regurgitation. Food or fluid coming back up is a mechanical problem. Medication often improves the burning but not the regurgitation itself.
• A weakened barrier. A hiatal hernia or a sphincter that no longer seals can allow large volumes of reflux that medication can’t fully control.
• A different diagnosis. Eosinophilic esophagitis, achalasia and other motility disorders, slow stomach emptying, and heightened esophageal sensitivity (sometimes called functional heartburn or reflux hypersensitivity) can all mimic GERD.

Because these problems are treated very differently, persistent symptoms are a reason to test — typically with upper endoscopy and pH monitoring, and manometry when a procedure is being considered — rather than simply increasing doses indefinitely.

For people who need them, PPIs remain a reasonable long-term treatment; current guidelines say the reported associations with other health problems have not been shown to be caused by the medications.

You may have seen headlines linking PPIs to kidney problems, bone fractures, dementia, or infections. Those findings come mainly from observational studies, which can show associations but not cause and effect. The American College of Gastroenterology’s 2022 guideline notes that these associations have not been established as caused by PPIs and does not recommend routine extra testing or supplements for people without other risk factors.

Practical points:

• Use the lowest dose that controls symptoms, and review with your clinician from time to time whether you still need it.
• Don’t stop suddenly without a plan. Some people notice rebound symptoms for a few weeks after stopping.
• If you have severe esophagitis or Barrett’s esophagus, long-term acid control is often recommended — by medication or by an anti-reflux procedure.

Wanting to stop medication is a reasonable goal to discuss, but concern about side effects alone isn’t a reason to have surgery without confirmed GERD.

Weight loss has the strongest evidence; avoiding late meals and raising the head of the bed help night-time symptoms; food triggers are individual.

• Weight loss if you are overweight or have gained weight recently. Even modest loss can reduce symptoms, and it has the strongest support of any lifestyle measure in current guidelines.
• Finish eating two to three hours before lying down.
• Raise the head of your bed with blocks under the bed legs or a wedge under the mattress if symptoms wake you at night. Extra pillows alone tend to bend you at the waist rather than raise your chest.
• Notice your own triggers. Common ones include large or fatty meals, alcohol, chocolate, peppermint, coffee, and carbonated drinks, but they vary a lot between people. There’s rarely a need to cut out every possible trigger.
• Stop smoking, which weakens the reflux barrier and harms the esophagus in other ways.

These steps work best alongside, not instead of, a clear diagnosis when symptoms are frequent.

Endoscopy is recommended first when there are warning signs — trouble swallowing, bleeding, weight loss, or anemia — and when symptoms don’t respond to treatment or a procedure is being considered.

Classic heartburn that responds to a course of medication doesn’t usually need an endoscopy. It becomes important when:

• Swallowing is difficult or painful, or food feels stuck
• There are signs of bleeding (black stools, vomiting blood) or iron-deficiency anemia
• You have lost weight without trying, or have persistent vomiting
• Symptoms continue despite an adequate trial of medication
• Anti-reflux surgery or an endoscopic procedure is being considered

People with long-standing reflux and certain risk factors may also be offered a one-time endoscopy to check for Barrett’s esophagus. See upper endoscopy for what the test involves.

Yes, but chest pain should be evaluated for heart causes first; call 911 for sudden, severe, or pressure-like chest pain.

The esophagus and heart sit next to each other and share nerve pathways, so their pain can feel alike. Reflux, esophageal spasm, and other esophageal disorders can all cause chest pain — but so can a heart attack.

For that reason, guidelines recommend that chest pain be evaluated for heart disease before it is attributed to the esophagus. Once the heart has been appropriately checked, testing such as endoscopy and pH monitoring can show whether reflux is responsible. Chest pain with swallowing difficulty, or pain that comes with meals and regurgitation of undigested food, may point toward a motility disorder such as achalasia.

When GERD has been confirmed by testing and medication isn’t controlling symptoms well, isn’t tolerated, or isn’t how you want to manage a long-term condition — and your swallowing function is suitable.

Anti-reflux surgery is a reasonable option for many people with proven GERD. It tends to be most helpful when:

• Testing confirms abnormal reflux (endoscopy findings and/or pH monitoring)
• Symptoms — particularly regurgitation — persist despite medication, or you’d prefer not to take medication long term
• There is a significant hiatal hernia contributing to reflux
• Manometry shows the esophagus can move food through a tightened valve

It tends to help less when symptoms haven’t been clearly linked to reflux, when the main complaint is bloating or nausea, or when another condition better explains the symptoms. A careful evaluation is what separates those situations. The treatment comparison describes the procedural options.

Yes. Excess weight worsens reflux, and in people with significant obesity, gastric bypass may address reflux and weight together; a sleeve gastrectomy can make reflux worse.

Extra weight increases pressure on the stomach and makes reflux more likely, which is why weight loss is the first lifestyle recommendation. For people with a higher body mass index, guidelines note that Roux-en-Y gastric bypass can be an effective anti-reflux operation because it diverts acid and bile away from the esophagus. By contrast, sleeve gastrectomy may worsen GERD in some patients, which is an important consideration when choosing a weight-loss operation.

Body weight is part of every individualized discussion about which procedure fits best. See reflux after bariatric surgery for more.