Reflux and Throat Symptoms

Non-Erosive Reflux Disease

Related terms · NERD · Reflux with normal endoscopy

Non-erosive reflux disease is a condition where reflux symptoms are present, but no erosion of the esophageal mucosa is visible during an endoscopy.

Reviewed by Korean Medicine Doctor Choi Yeon-seung · Last updated 2026-08-25

Overview

Non-erosive reflux disease: please look at these three things first

  • Non-erosive reflux disease refers to cases where reflux symptoms are present, but no damage to the esophageal mucosa is visible during an endoscopy.
  • A normal endoscopy result does not mean there are no symptoms; the relationship between acid exposure and symptoms may be further examined.
  • Esophageal hypersensitivity or functional heartburnheartburn must be distinguished to clarify the direction of treatment.

Definitions and Distinctions

What is non-erosive reflux disease?

Reflux symptoms are not dismissed based on endoscopy results alone; symptoms and additional evaluations are considered together. Non-erosive reflux disease is a condition where reflux symptoms exist, but no erosion of the esophageal mucosa is seen on endoscopy.

Easily Confused Terms
functional heartburnIt can be distinguished from reflux hypersensitivity by evaluating the correlation between acid exposure and symptoms.
Why this is checked during the medical evaluation
We check the response to existing acid suppressants and the scope of the tests performed.
Information to prepare
Please let us know the date of your endoscopy and any changes before and after taking medication.

More details

Connecting non-erosive reflux disease to my symptoms

Reflux symptoms can occur even if there are no wounds on the endoscopy

An endoscopy shows the state of the esophageal mucosa at the time of the exam. Even if heartburn and acid regurgitation recur, visible erosion may not be present. This is called non-erosive reflux disease, but the fact that an endoscopy is normal does not automatically classify all heartburn as reflux disease.

Esophageal hypersensitivity and functional heartburn have different test results

If the timing of actual reflux coincides with the symptoms, esophageal hypersensitivitythis can be observed; if the relationship between acid exposure and symptoms is not clear, other possibilities such as functional heartburn are considered. When necessary, pH-impedance testing is used to confirm the frequency of reflux and its temporal relationship with symptoms.

We first re-examine what remains after taking medication

Please note separately whether the acid regurgitation decreased but a burning sensation remained after taking acid suppressants, and whether symptoms after lying down Post-meal bloatingoccur together. In Korean medicine, we determine the scope of herbal medicine treatment by examining the response to previous treatments, esophageal sensitivity, gastrointestinal discomfort, and patterns of sleep and tension.

Frequently Asked Questions

Common questions when looking into non-erosive reflux disease

Why does heartburn continue even though the endoscopy is normal?

Since an endoscopy is a test to look for mucosal damage, it does not directly show every moment reflux occurs or the sensitivity of the esophagus. We interpret the pattern of symptoms, response to medication, and, if necessary, pH-impedance test results together.

Is non-erosive reflux treated the same way as esophagitis?

Depending on your symptoms and test results, acid-suppressing treatment may be helpful, although responses can vary. We adjust the necessary treatment by evaluating your eating and sleeping posture, esophageal hypersensitivity and tension responses, and any accompanying indigestion.

Gastrointestinal Glossary

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Evidence and Update Information

The definitions and safety standards in the materials below were referenced.

  1. NIDDK: Diagnosis of GERD
Summary and review information for this page

Reviewing Medical Staff

Choi Yeon-seung, Doctor of Korean MedicineChief Director · Editor of Korean Medicine Atlas · BRC Researcher

Page Summary

Non-erosive reflux disease is a condition where reflux symptoms are present, but no erosion of the esophageal mucosa is visible during an endoscopy.

What this page covers

What is explained
What should be checked first regarding the meaning of non-erosive reflux disease?
What situations are covered
We do not rule out reflux symptoms based on endoscopy results alone, but consider symptoms and additional evaluations together.
What distinctions are made
Meaning of non-erosive reflux disease: We do not rule out reflux symptoms based on endoscopy results alone, but consider symptoms and additional evaluations together.
How should this be understood
Non-erosive reflux disease is a condition where reflux symptoms are present, but no erosion of the esophageal mucosa is visible during an endoscopy.

Key Points

  • Meaning of non-erosive reflux disease: We do not rule out reflux symptoms based on endoscopy results alone, but consider symptoms and additional evaluations together.
  • Difference from similar terms: It can be distinguished from functional heartburn or reflux hypersensitivity by evaluating the relationship between acid exposure and symptoms.
  • Reason for checking during medical evaluation: We verify the response to previous acid suppressants and the scope of the tests performed.

References cited on this page

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