GERD vs. Stomach Ulcer: How to Tell Them Apart

Symptom Comparison

GERD (Acid Reflux)

• Burning sensation rising from the stomach to the chest ("heartburn")
• Worsens after large meals, spicy/fatty food, or lying down soon after eating
• Sour or bitter taste in the mouth
• Sometimes accompanied by a chronic cough or hoarseness

Stomach Ulcer

• Gnawing or burning pain in the upper abdomen
• Pain often on an empty stomach, sometimes improving temporarily after eating
• May wake you at night
• In more serious cases: dark stools or vomiting blood — seek care immediately if these occur

Why the Overlap Makes Self-Diagnosis Unreliable

Both conditions involve stomach acid and can cause burning upper-abdominal pain, which is exactly why relying on symptoms alone often leads to the wrong self-treatment. Someone with an ulcer who assumes it's "just reflux" and self-treats with antacids may delay diagnosis of an ulcer that needs specific treatment, including testing for H. pylori infection — a common ulcer cause that antacids don't address.

What an Endoscopy Actually Shows

An upper endoscopy lets a gastroenterologist directly view the esophagus, stomach, and upper small intestine, distinguishing reflux-related inflammation from an actual ulcer, and can include testing for H. pylori bacteria during the same procedure.

Treatment Differs Meaningfully

GERD is typically managed with acid-reducing medication and lifestyle changes (diet, elevation while sleeping, weight management). Ulcers, especially those caused by H. pylori, require a specific antibiotic course in addition to acid reduction — without treating the underlying cause, ulcers tend to recur.

Common Questions