Which symptom is most commonly associated with GERD rather than peptic ulcer disease?

Heartburn is most commonly associated with gastroesophageal reflux disease (GERD) due to the nature of the condition, where stomach acid flows back into the esophagus. This backflow leads to inflammation and discomfort, primarily characterized by a burning sensation in the chest or throat, which is the hallmark symptom of GERD.

Peptic ulcer disease, on the other hand, can cause a variety of symptoms, including epigastric pain, nausea, and in some cases, even gastrointestinal bleeding that may result in dark, tarry stools. However, heartburn is specifically linked to the reflux of stomach contents, making it a more defining symptom of GERD compared to ulcers. The nature of the pain and associated symptoms can vary significantly between the two conditions, further emphasizing the distinct presence of heartburn in patients suffering from GERD.