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Overview

What Is Gastroesophageal Reflux Disease?

Gastroesophageal reflux disease (GERD) occurs when stomach contents repeatedly flow back into the esophagus, the tube that carries food to the stomach. This backflow can cause troublesome symptoms or irritate and damage the esophageal lining. Occasional acid reflux is common, but recurring reflux that causes symptoms or tissue irritation is considered GERD. It can affect adults of different ages.

Symptoms

Symptoms of Gastroesophageal Reflux Disease

  • Burning discomfort behind the breastbone (heartburn).
  • Stomach contents or sour fluid coming back into the mouth (regurgitation).
  • Pain or discomfort in the chest or upper abdomen.
  • Difficulty or pain when swallowing (dysphagia).
  • Nausea.
  • A chronic cough.
  • Hoarseness or voice changes.
  • A sore throat, throat clearing, or a feeling of a lump in the throat.

Causes

What Causes Acid Reflux and GERD?

Reflux can occur when the lower esophageal sphincter, a ring of muscle between the esophagus and stomach, relaxes when it should not or does not close effectively. This allows stomach contents, including acid, to move upward into the esophagus. Repeated exposure can irritate the esophageal lining and lead to GERD symptoms.

Structural and Digestive Contributors

A hiatal hernia can change the position and function of the lower esophageal sphincter. Delayed stomach emptying and increased pressure on the stomach can also make reflux more likely. GERD usually develops from several interacting factors rather than one single cause; these underlying contributors are different from modifiable triggers such as meal timing, tobacco, or personal food choices.

Risk Factors

Risk Factors for Gastroesophageal Reflux Disease

Risk-factor categoryExamples and context
Modifiable or lifestyle factorsOverweight or obesity, smoking, large meals, late meals, and lying down soon after eating can increase reflux for some people.
Individual food and drink triggersAlcohol and specific foods may worsen symptoms in some people, but triggers vary and no single diet affects everyone.
MedicinesCertain medicines can relax the lower esophageal sphincter or irritate the esophagus; a clinician can review possible effects and alternatives.
PregnancyHormonal changes and pressure on the stomach during pregnancy can make reflux more likely.
Structural factorsA hiatal hernia can contribute to reflux by affecting the barrier between the stomach and esophagus.
Medical factorsConditions that slow stomach emptying may increase the time stomach contents remain available to reflux.

Individual triggers differ, so do not eliminate broad food groups unless there is a clear connection to your symptoms or a clinician recommends it. A food and symptom record can help identify patterns and guide practical gastroesophageal reflux disease self-care.

Complications

Complications of GERD

  • Inflammation of the esophagus (esophagitis).
  • Open sores or bleeding in the esophagus (esophageal ulcers).
  • Narrowing of the esophagus that makes swallowing difficult (stricture).
  • Changes in the esophageal lining (Barrett’s esophagus).
  • Wearing away of tooth enamel from repeated acid exposure (dental erosion).
  • Poor sleep or throat and voice problems caused by nighttime or ongoing reflux.

LONG-TERM RISK

Persistent reflux deserves evaluation

Barrett’s esophagus does not mean that a person has cancer, but it can increase the risk of esophageal cancer. For selected patients, a clinician may recommend follow-up examinations to monitor these changes.

Diagnosis

How GERD Is Diagnosed

Diagnosis often begins with a medical history, the pattern and timing of symptoms, a medication review, and a physical examination. When symptoms are typical and there are no warning signs, a clinician may try initial treatment without immediate testing. Testing can help confirm GERD, assess complications, or look for another cause when symptoms are unusual or do not improve.

  • Upper endoscopy uses a flexible camera to examine the esophagus and stomach and may identify inflammation, narrowing, ulcers, or Barrett’s esophagus.
  • Ambulatory pH or impedance monitoring measures acid and nonacid reflux over time and can connect reflux episodes with symptoms.
  • Esophageal manometry measures muscle pressure and movement to assess the lower esophageal sphincter and swallowing function.
  • Targeted testing may investigate complications or alternative conditions when the symptom pattern does not clearly indicate acid reflux.

Treatment & Management

GERD Treatment and Management

Lifestyle and Self-Care Measures

  • Eat smaller meals and avoid lying down soon after eating; many people benefit from allowing several hours between a meal and bedtime.
  • Elevate the head of the bed when nighttime symptoms occur, using a safe and stable method rather than simply adding pillows.
  • Work toward weight management when appropriate, because excess abdominal pressure can worsen reflux.
  • Antacids can provide short-term relief and should be used according to the product label.
  • Alginates may form a protective barrier that reduces post-meal reflux and should be used as directed.
  • H2 blockers reduce acid production and should be taken according to label instructions or medical advice.
  • Proton pump inhibitors provide stronger acid suppression for some people and should be used as directed by a clinician or product label.
  • A clinician can adjust medicines that may worsen reflux or review treatment when symptoms persist.

MEDICATION SAFETY

Know when self-treatment is not enough

Endoscopic procedures or anti-reflux surgery may be considered when symptoms continue despite appropriate treatment, medicines are not tolerated, or a selected anatomic problem is present. Chest pain, trouble swallowing, vomiting blood, black stools, or unexplained weight loss should not be managed solely with over-the-counter acid reflux medicine.

Prevention

Can GERD Be Prevented?

  • Maintain a healthy weight when appropriate and discuss a safe weight-management plan with a clinician if needed.
  • Avoid tobacco because smoking can weaken the barrier that helps keep stomach contents out of the esophagus.
  • Identify personal food and drink triggers instead of avoiding foods that do not affect your symptoms.
  • Choose smaller meals when large portions bring on reflux.
  • Allow time between eating and lying down, especially before sleep.
  • Follow prescribed treatment and attend follow-up visits if symptoms continue.

Prevention is not absolute because anatomy, pregnancy, medicines, and other medical conditions can contribute to GERD. These steps may reduce episodes or prevent symptoms from worsening, but they do not replace medical evaluation when reflux is frequent or severe.

Outlook and Prognosis

Outlook and Prognosis for GERD

GERD is often controllable with lifestyle changes and medicines, although symptoms may return when treatment stops or triggers continue. The outlook depends on how well symptoms respond, whether treatment is tolerated, and whether complications such as esophagitis or Barrett’s esophagus develop. Some people need ongoing treatment or follow-up to keep acid reflux under control.

When Should You See a Doctor

When Should You See a Doctor for GERD?

  • Contact a clinician if reflux symptoms occur frequently or are becoming worse.
  • Seek medical advice if symptoms interfere with sleep, work, eating, or other daily activities.
  • Arrange an evaluation if symptoms continue despite appropriate self-care or nonprescription acid reflux medicine.
  • Tell a clinician about trouble swallowing or a sensation that food is sticking.
  • Seek care for recurrent vomiting.
  • Ask for medical evaluation if you have unexplained weight loss.
  • Discuss possible medication side effects before stopping or changing a prescribed medicine.

SEEK URGENT HELP

Do not assume chest pain is GERD

New or severe chest pain, especially with shortness of breath, sweating, dizziness, or pain spreading to the arm or jaw, requires emergency evaluation. These symptoms may signal a heart or other serious problem rather than acid reflux.

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