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Stomach Ulcer Symptoms: What They Feel Like and When to Act
A peptic ulcer is a sore on the lining of your stomach or the first part of your small intestine. It is common — about 1 in 10 people develop one — and it is almost always treatable.
The tricky part: its symptoms overlap with heartburn, gastritis, and IBS. Here is how to recognize the ulcer pattern and why getting it checked matters.
What a Peptic Ulcer Actually Is
An ulcer is a break in the protective lining of the stomach or duodenum (the first part of the small intestine). Stomach acid then touches the raw tissue beneath — which is why the pain is what it is.
The two main causes (this matters for treatment):
1. H. pylori bacteria — responsible for most ulcers. A common, treatable stomach infection
2. NSAIDs — regular ibuprofen, naproxen, and aspirin damage the protective lining over time. The most common cause in people without H. pylori
Stress and spicy food do NOT cause ulcers — that is the classic myth. Stress worsens symptoms; it does not create the sore. The two real causes above do.
The Classic Symptoms
- Burning or gnawing pain in the upper abdomen — between the breastbone and belly button. The hallmark symptom
- Pain between meals or at night — the classic timing. Empty stomach = acid on raw tissue = pain. (Duodenal ulcers classically hurt when empty; stomach ulcers may hurt during or after eating)
- Pain relieved by eating — for some, food briefly soothes it (the stomach buffers the acid) — then it returns hours later
- Bloating and feeling full quickly — a full sensation after small meals
- Nausea — sometimes with the pain
- Indigestion and burping
The Symptom Checklist (When to Suspect an Ulcer)
You should suspect an ulcer (and see a doctor) if you have:
– Burning upper-abdominal pain that comes and goes for days or weeks
– Pain that wakes you at night
– Pain that is different from your usual heartburn, or that antacids do not fully settle
– Regular NSAID use (ibuprofen, naproxen, aspirin) WITH the above
The Two-Minute Self-Review
| Question | Ulcer hint |
|---|---|
| Does the pain burn or gnaw? | Yes — classic ulcer quality |
| Does it come between meals/night? | Yes — empty-stomach pattern |
| Are you on daily painkillers? | NSAIDs cause ulcers |
| Does eating sometimes help? | Common in duodenal ulcers |
| Antacids — do they help fully? | Often only partially |
Two or more “yes” answers → worth a doctor visit, not a web search.
The Tests (Fast and Definitive)
- H. pylori breath or stool test — non-invasive, detects the bacteria
- Endoscopy — a camera down the throat; the definitive diagnosis and allows biopsy. The gold standard when symptoms are significant
- Barium swallow — older imaging method, less used now
Do not just “try antacids for a month.” If it is H. pylori, antacids mask symptoms while the ulcer deepens. And if it is an ulcer from NSAIDs, the NSAID must be stopped — a conversation with your doctor, not a lifestyle change.
The Treatment (It Works)
- If H. pylori: a 2-week course of two antibiotics + a PPI — the standard triple therapy. It cures the infection and the ulcer heals. Cure rate is high; take the full course
- If NSAID-related: stop the NSAID (with your doctor’s guidance on alternatives), plus a PPI for 4-8 weeks to heal the lining
- Either way: acid suppression (PPI) for 4-8 weeks while healing, then reassess
Most ulcers heal completely within weeks. The “you have an ulcer forever” idea is outdated — the modern treatment genuinely cures the overwhelming majority.
When It Is an Emergency (Call a Doctor or ER Now)
- Vomiting blood — bright red, or dark “coffee-ground” material
- Black, tarry, or sticky stools — digested blood
- Sudden, severe, tearing abdominal pain — a perforated ulcer (a hole through the stomach wall) is a surgical emergency
- Dizziness, faintness, or rapid heartbeat with ulcer symptoms — signs of internal bleeding
- Severe pain with a rigid, board-like abdomen
These are bleeding or perforation — they need urgent medical care, not a home remedy.
Related reading: acid reflux triggers, GERD
H. pylori: Testing and Eradication
Testing for H. pylori has one job: to show whether an infection is active right now, because only an active infection needs treating. The urea breath test and the stool antigen test do that. The blood antibody test does not. Antibodies linger for months or years after the bacteria are gone, so a positive blood result can be a record of an old infection rather than a current one.
Antibiotics and acid-suppressing medication can suppress the bacteria enough to make a test falsely negative, so your clinician will tell you when to pause them.
Eradication takes a full course, not a single dose: two antibiotics plus a proton pump inhibitor, taken exactly as prescribed. The acid suppression helps the antibiotics work and gives the lining time to heal. Stopping early leaves the hardiest bacteria behind, and those survivors return resistant. A test of cure afterwards confirms the infection has cleared.
NSAIDs, Blood Thinners and Ulcer Risk
The painkillers most often involved are ibuprofen, naproxen, and aspirin — including non-prescription versions and combination cold remedies. They work by blocking prostaglandins, and prostaglandins are part of the stomach’s own defence: less of them means less protective mucus and slower repair.
Risk depends on dose and duration. Occasional use at a standard dose is a different proposition from daily use for months. Risk climbs with higher doses, longer courses, older age, a previous ulcer, and combined use of steroids or blood thinners.
That is why protection is sometimes prescribed rather than assumed: a proton pump inhibitor alongside the NSAID for higher-risk people, or a different painkiller entirely. Anticoagulants and antiplatelet drugs do not usually create ulcers, but they make an existing one bleed more readily — stacking them with regular NSAIDs is a combination to raise with the prescriber.
Bleeding: The Signs That Change Everything
Most ulcers announce themselves with pain. A bleeding ulcer may not. Blood can trickle for days without discomfort, showing up only as tiredness, breathlessness, or a low blood count on a routine test — the pattern behind some cases of iron deficiency anemia.
The warning signs are specific. Black, tarry, sticky stools mean blood has been digested on the way through the gut. Vomiting coffee-ground material or fresh blood points to bleeding in the upper gut. Dizziness or faintness on standing, a racing pulse, cold clammy skin, or confusion suggest enough blood loss to affect circulation.
These call for emergency assessment the same day — by ambulance if the person is faint, confused, or has collapsed — not a clinic appointment next week. Prompt endoscopy can stop the bleeding, and delay is what turns a treatable bleed into a dangerous one.
Frequently Asked Questions
What does ulcer pain feel like exactly?
Can ulcers heal on their own?
Does stress cause stomach ulcers?
Can ulcers be caused by NSAIDs (ibuprofen)?
Can stomach ulcers come back after treatment?
Last updated: July 2026
Sources:
- National Institute of Diabetes and Digestive and Kidney Diseases — Peptic ulcers
- Mayo Clinic — Peptic ulcer
- American College of Gastroenterology — Peptic ulcer disease
- Cleveland Clinic — Stomach ulcers
