The esophagus is a tube that carries food from the mouth to the stomach. A valve (lower esophageal sphincter, or LES) prevents stomach acid from flowing upward. Sometimes this valve doesn't work correctly. Then stomach contents may flow back up (reflux) into the esophagus. When it happens again and again, it's called GERD (gastroesophageal reflux disease). GERD can irritate the esophagus. It can cause pain. It can also cause problems with swallowing or breathing. In severe cases, GERD can cause pneumonia that keeps coming back. This is from breathing in particles (aspiration) that are in the refluxed contents from the stomach. GERD can lead to other health problems, such as:
- Inflammation of the lining of the esophagus (esophagitis)
- Narrowing of the esophagus (stricture formation)
- Cancer
Symptoms of reflux include burning, pressure, or sharp pain in the upper belly (abdomen). Symptoms may also be in the mid to lower chest. The pain can spread to the neck, back, or shoulder. You may have:
- Belching (burping)
- Acid taste in the back of the throat
- Chronic cough
- Sore throat
- Increased salivation
- Hoarseness
- Trouble breathing
GERD symptoms often occur during the day after a big meal. They can also occur at night when lying down.