GERD, or gastroesophageal reflux disease, happens when stomach acid backs up into the esophagus. On the bottom part of your esophagus lies a band of muscle which opens and closes when you swallow food. If this muscle becomes weakened, the acid within your stomach can return to the esophagus. This acid can irritate the lining of the esophagus.
Heartburn
A common symptom of GERD is heartburn. The burning sensation will begin in your chest and may often travel into your throat.
Dysphagia
Dysphagia makes it difficult to swallow food or liquids.
Regurgitation
Occasionally, a small amount of liquid (with or without food) will find its way back into your mouth. Regurgitation as a result of GERD can lead to tooth erosion.
Nausea/Vomiting
Nausea is rare with GERD but can occur. The nausea can be severe and may lead to vomiting.
Other Symptoms
When you have a GERD reaction, you may feel a lump in your throat, or your throat may feel sore and hoarse. You may also experience chest pain and a dry, hacking cough.
Complications
If GERD goes untreated, it can lead to ulcers, scarring within the esophagus that causes a narrowing of the inner cavity, Barrett's esophagus (pre-cancerous cells), and inflammation of the lung and throat.
