Acid reflux, also known as gastroesophageal reflux disease (GERD), is a common digestive condition affecting millions of individuals. It 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, leading to discomfort and potential long-term issues.
Causes and risk factors
Acid reflux is primarily caused by abnormalities in the lower esophageal sphincter (LES), the muscle that separates the esophagus from the stomach. Factors that can exacerbate acid reflux include:
- Obesity
- Lying down after a meal
- Snacking close to bedtime
- Eating certain foods, such as citrus, tomato, chocolate, mint, garlic, onions, or spicy or fatty foods
- Drinking certain beverages, such as alcohol, carbonated drinks, coffee, or tea
- Smoking
- Pregnancy
- Certain medications, like aspirin, ibuprofen, certain muscle relaxers, or blood pressure prescriptions
Diagnosing acid reflux
Diagnosing GERD involves reviewing your symptoms and medical history. If over-the-counter medications haven’t been effective, your doctor may recommend tests, including:
- Esophagogastroduodenoscopy (EGD) to look for signs of esophageal damage.
- Ambulatory acid (pH) probe test to identify when acid reflux occurs.
- Esophageal motility testing to measure movement and pressure in your esophagus.