What is the medical term eructation commonly used to describe?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Eructation is the medical term for belching—the release of excess gas from the stomach through the mouth. It's a normal digestive process that helps expel swallowed air, but frequent or excessive eructation can sometimes signal underlying issues such as acid reflux (GERD), indigestion, gastritis, or H. pylori infection.

If you're experiencing persistent belching or other digestive symptoms, it's worth understanding what may be causing them. Identifying the root cause early can help you decide whether self-care, dietary changes, or a doctor's visit is your best next step. Take a free, instant, online symptom check to get personalized insights into your symptoms and confidently navigate what to do next.

Reviewed for medical accuracy: 07/15/2026

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Explanation

Eructation, commonly known as belching, is the act of releasing gas from the stomach through the mouth. This is a normal bodily function that helps to relieve the stomach of excess gas.

How Eructation Works

Physiology: The process of eructation involves the movement of gas up from the stomach, passing through the esophagus, and exiting through the mouth. It is a natural way for the body to expel swallowed air or gas produced during digestion.

Causes of Eructation

Normal Function: In most cases, eructation is simply a result of swallowing air while eating or drinking.
Digestive Disorders: Sometimes, frequent belching can be a symptom of digestive issues such as dyspepsia or gastroesophageal reflux disease (GERD).

Understanding eructation can help differentiate between normal bodily functions and potential digestive issues. If belching is excessive or accompanied by other symptoms, you can use our free AI symptom checker to help identify possible causes and determine whether you should consult with a healthcare provider.

(References)

Lang IM. (2016). The Physiology of Eructation. Dysphagia, 26694063.
Lin M, & Triadafilopoulos G. (2003). Belching: dyspepsia or gastroesophageal reflux disease?. The American journal of gastroenterology, 14572558.
Ryu HS, Choi SC, & Lee JS. (2014). [Belching (eructation)]. The Korean journal of gastroenterology = Taehan Sohwagi Hakhoe chi, 25073665.

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