GERD, or gastroesophageal reflux disease, is a chronic condition where stomach acid flows back into your esophagus frequently enough to cause symptoms or tissue damage. The key distinction from ordinary heartburn: GERD is diagnosed when acid reflux occurs two or more times per week, or when reflux has already caused visible damage to the esophageal lining. About 20% of adults in Western countries deal with it regularly, and treatment ranges from simple habit changes to medication to surgery, depending on severity.
How GERD Differs From Occasional Heartburn
Almost everyone experiences acid reflux at some point. You eat too much, lie down too soon, and feel that burning sensation behind your breastbone. That’s normal. GERD is what happens when this becomes a pattern. The valve between your esophagus and stomach, called the lower esophageal sphincter, either relaxes too often or doesn’t close tightly enough, allowing acid to wash upward repeatedly.
The damage matters as much as the frequency. Even if your symptoms don’t feel severe, GERD can be diagnosed when acid exposure has caused inflammation or permanent tissue changes in the esophagus. Left untreated over years, roughly 3% of people with GERD develop a condition called Barrett’s esophagus, where the lining of the esophagus changes in a way that slightly raises cancer risk. The annual risk of Barrett’s progressing to esophageal cancer is low, between 0.1% and 0.33%, but it’s the reason persistent reflux deserves attention rather than just ongoing antacid use.
Symptoms Beyond Heartburn
The classic symptoms are a burning sensation in the chest and the taste of acid or food coming back up into your throat, especially after meals or at night. But GERD doesn’t always announce itself so obviously.
Around 30% to 35% of people with GERD develop a chronic cough that has nothing to do with their lungs. Acid reaching the upper esophagus can irritate the airways directly through tiny amounts of aspiration, or it can trigger nerve reflexes that cause coughing and tightening of the airways without acid ever touching the lungs. This is why some people with unexplained chronic cough, hoarseness, a persistent sore throat, or worsening asthma eventually discover GERD is the underlying cause. If you’ve been chasing a cough for months without a clear respiratory explanation, reflux is worth investigating.
Lifestyle Changes That Actually Help
Before reaching for medication, several adjustments can meaningfully reduce how often acid escapes your stomach.
Elevating the head of your bed is one of the best-supported strategies. Propping yourself up with pillows doesn’t work well because it bends you at the waist rather than tilting your whole torso. Instead, place blocks or a wedge under the head of your bed frame. Starting with about 10 centimeters (4 inches) of elevation is reasonable. If that doesn’t help after a few weeks, increasing to 20 centimeters (8 inches) often makes a noticeable difference, particularly for nighttime symptoms.
Eating your last meal at least two to three hours before lying down gives your stomach time to empty and reduces the volume of acid available to reflux. Smaller, more frequent meals help too, since a full stomach puts more pressure on that lower valve. Losing weight, if you carry extra pounds around the midsection, directly reduces pressure on the stomach and is one of the most effective long-term interventions.
Food Triggers Are More Individual Than You’d Think
You’ve probably seen lists of foods to avoid: spicy food, chocolate, coffee, fatty meals, citrus, tomatoes. The reality is more nuanced. High-fat meals have the strongest evidence for causing problems. They relax the lower esophageal sphincter and slow stomach emptying, which is a reliable recipe for reflux. Carbonated beverages also relax the sphincter and increase acid secretion.
Coffee and chocolate both relax the valve in lab settings, but observational studies haven’t consistently shown they cause symptoms in real life for most people. Spicy foods, despite their reputation, have little measurable effect on sphincter pressure. The practical takeaway: pay attention to your own triggers rather than eliminating everything on a generic list. If coffee doesn’t bother you, there’s no strong reason to quit it for GERD alone.
Medication Options
When lifestyle changes aren’t enough, acid-suppressing medications are the first-line treatment. These come in two main categories that work differently.
H2 blockers (like famotidine) reduce acid production moderately and work well for mild or occasional symptoms. They kick in within an hour or two and are available over the counter. For many people with infrequent flare-ups, these are sufficient.
Proton pump inhibitors, commonly called PPIs, are stronger. They shut down acid production more completely and are the standard treatment for moderate to severe GERD. The key detail most people get wrong is timing: PPIs work best when taken 30 minutes before a meal, typically breakfast. One study found that 100% of patients whose PPIs “weren’t working” were actually taking them at the wrong time, either more than an hour before eating, during a meal, or at bedtime. If you feel like your PPI isn’t helping, fixing the timing is the first thing to try.
For people who don’t respond well to a once-daily PPI, doctors may split the dose to twice daily (before breakfast and before dinner), try a different PPI, or add an H2 blocker at bedtime to control overnight acid. GERD that doesn’t respond to a double dose of a PPI taken correctly for at least eight weeks is considered refractory, and that’s when additional testing usually becomes necessary.
When Testing Is Needed
Most people with typical heartburn symptoms don’t need specialized testing. A trial of medication that resolves symptoms is often enough to confirm the diagnosis. But when symptoms persist despite proper treatment, or when atypical symptoms like chronic cough or chest pain make the diagnosis uncertain, doctors turn to more specific tools.
Ambulatory pH monitoring is the gold standard. You wear a thin sensor for 24 to 48 hours that measures how often acid reaches your esophagus, how long each episode lasts, and what percentage of time your esophagus spends exposed to acid. These measurements are combined into a composite score. A score of 14.7 or higher confirms abnormal acid exposure. This test is especially useful for people considering surgery, since it provides objective proof of reflux before committing to an operation.
An upper endoscopy, where a camera is passed down your throat, lets doctors look for inflammation, narrowing, or the tissue changes associated with Barrett’s esophagus. It’s typically recommended for people with longstanding symptoms, difficulty swallowing, or other warning signs.
Surgical Treatment
Surgery becomes a consideration when medication controls symptoms but you don’t want to take pills indefinitely, when you can’t tolerate PPIs, or when reflux persists despite optimized medical therapy. Two main procedures are used today.
Nissen fundoplication has been the standard for decades. The surgeon wraps the top of your stomach around the lower esophagus to reinforce the weak valve. It’s highly effective at stopping reflux, but it creates a tighter wrap that can make it difficult or impossible to belch, and about a third of patients report increased bloating and gas afterward.
A newer option called magnetic sphincter augmentation (the LINX device) involves placing a small ring of magnetic beads around the lower esophageal sphincter. The magnets are strong enough to keep the valve closed against reflux but weak enough to open when you swallow. In comparative studies, both procedures produced similar improvements in symptom scores and acid control. Where they differed: 67% of LINX patients could still belch normally compared to none of the fundoplication patients, and only 10% of LINX patients reported bloating versus 32% after fundoplication. LINX also allowed 82% of patients to stop PPI use entirely, compared to 63% after fundoplication.
The LINX device isn’t suitable for everyone. It hasn’t been evaluated in patients with Barrett’s esophagus, severe esophageal inflammation, or hiatal hernias larger than 3 centimeters. Some patients also experience difficulty swallowing afterward that requires a stretching procedure. For appropriately selected patients without these complicating factors, it’s increasingly considered a first-line surgical option because it preserves more of the stomach’s natural anatomy.