Overview
Gastroesophageal reflux disease, Dallas (GERD) occurs when stomach acid frequently flows back into the tube connecting your mouth and stomach (esophagus). This backwash (acid reflux) can irritate the lining of your esophagus.
Many people experience acid reflux from time to time. GERD is mild acid reflux that occurs at least twice a week, or moderate to severe acid reflux that occurs at least once a week.
Causes
GERD is caused by frequent acid reflux.
When you swallow, a circular band of muscle around the bottom of your esophagus (lower esophageal sphincter) relaxes to allow food and liquid to flow into your stomach. Then the sphincter closes again.
If the sphincter relaxes abnormally or weakens, stomach acid can flow back up into your esophagus. This constant backwash of acid irritates the lining of your esophagus, often causing it to become inflamed.
Risk factors
Conditions that can increase your risk of GERD include:
- Obesity
- Bulging of the top of the stomach up into the diaphragm (hiatal hernia)
- Pregnancy
- Connective tissue disorders, such as scleroderma
- Delayed stomach emptying
Factors that can aggravate acid reflux include:
- Smoking
- Eating large meals or eating late at night
- Eating certain foods (triggers) such as fatty or fried foods
- Drinking certain beverages, such as alcohol or coffee
- Taking certain medications, such as aspirin
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