17797 Stomach Polyps
Informed by recognized medical guidance
Overview
Stomach polyps are small growths that develop on the inner lining of the stomach. They are usually harmless, but some types can turn into cancer if they are not removed or monitored.
Key facts
- Most stomach polyps do not cause symptoms and are found by chance during tests.
- Only a small number of stomach polyps become cancerous.
- Removing a polyp during a camera test can often prevent future problems.
Stomach polyps are not very common. They are found in about 1–2 out of 100 people having a stomach camera test.
They are most often seen in adults over 50, especially people with long-term stomach inflammation, an H. pylori infection, or a family history of certain polyp conditions.
Symptoms
- Vomiting blood or material that looks like coffee grounds.
- Passing black, tarry, or bloody stools.
- Fainting or feeling lightheaded when standing up.
- Crushing belly pain that does not go away.
- ⚠Persistent vomiting or dehydration.
- ⚠Difficulty swallowing or food getting stuck.
- ⚠Unexplained weight loss or loss of appetite.
- ⚠Signs of anemia such as severe tiredness or shortness of breath.
Common symptoms
- Most people have no symptoms at all.
- Some people may feel pain or discomfort in the upper belly.
- Nausea or feeling full after eating a small meal.
- Bleeding from the stomach, which can show up as dark, tarry stools or tiredness from low red blood cells.
Symptoms in children
- Stomach polyps are rare in children. If they occur, symptoms may include vomiting, belly pain, or blood in the stool.
Symptoms in older adults
- Older adults are more likely to have iron-deficiency anemia as a result of polyp bleeding. Fatigue and pale skin may be the only clues.
Causes
Main causes
- Chronic inflammation of the stomach lining (gastritis), often due to an H. pylori infection.
- Long-term use of medicines that reduce stomach acid, which some doctors think may lead to certain polyps.
- Inherited gene changes that cause conditions such as familial adenomatous polyposis.
Risk factors
- Age over 50.
- Male sex (a slightly higher risk).
- Long-term stomach inflammation.
- Infection with H. pylori bacteria.
- Pernicious anemia (low vitamin B12 due to stomach immunity).
- Family history of stomach polyps or stomach cancer.
When to see a doctor
See a doctor urgently if:
- Any sign of bleeding from the stomach, such as black or bloody stools or vomiting blood.
- Continuous, severe belly pain.
- Trouble swallowing that gets worse.
Book a routine appointment if:
- Persistent indigestion, nausea, or belly pain that does not improve with self-care.
- Anemia found on a blood test, especially if you have no other explanation.
- A feeling of fullness that comes quickly when eating.
Diagnosis
Stomach polyps are most often found during an endoscopy, a test in which a flexible camera tube is passed through your mouth into your stomach. If a polyp is seen, the doctor may take a tissue sample (biopsy) or remove it completely.
Tests that may be done
- Upper endoscopy (esophagogastroduodenoscopy, or EGD).
- Biopsy of the polyp.
- Stool test to look for hidden blood.
- Blood test to check for anemia or H. pylori infection.
- Imaging scans, such as CT, if needed to look at the stomach more closely.
What to expect at your appointment
You will be given sedation to keep you relaxed. The camera test usually takes 15–30 minutes. You may have a sore throat or bloating afterward. Biopsy results typically take a few days. Your doctor will explain what type of polyp you have and what it means for your future checks.
Treatment
Treatment depends on the size, type, and number of polyps, and whether they look abnormal or precancerous. Many polyps can be removed safely during an endoscopy. If a polyp is very small and harmless, your doctor may choose to leave it and check it again later.
Self-care at home
- Follow your doctor's advice about when to return for a follow-up endoscopy.
- If you smoke, consider stopping—smoking irritates the stomach.
- Limit alcohol and avoid foods that trigger severe indigestion.
- Keep active and eat a balanced diet to support your overall health.
Medical treatments
If an H. pylori infection is found, your doctor will prescribe a combination of antibiotics and acid-reducing medicines to clear the infection. Acid-reducing medicines may also be used if gastritis or gastro-oesophageal reflux are contributing. Always take any prescribed medicines exactly as your doctor advises.
When is surgery considered?
Surgery is rarely needed. It may be considered if a polyp is very large, cannot be removed by endoscopy, or contains cancer cells that need removal for peace of mind.
Living with this condition
For most people, life goes on exactly as before. You may need return visits to your specialist to keep an eye on your stomach. If you have no symptoms, you might not notice any change at all.
Lifestyle tips
- Eat a varied diet rich in vegetables, fruit, and whole grains.
- Stay physically active for at least 150 minutes a week.
- Manage stress with relaxation exercises or activities you enjoy.
- Get enough sleep.
Diet and exercise
Focus on high-fiber foods like oats, beans, and leafy greens. Processed meats and very salty or pickled foods should be limited. Gentle exercise like walking or cycling is fine for most people—check with your doctor if you have other health conditions.
Mental health and emotional wellbeing
Hearing that you have polyps can cause worry about cancer. Try to remember that most polyps are harmless. If you feel anxious or low, speak to your doctor or practice nurse. They can connect you with counseling services. If you ever feel you cannot cope or have thoughts of harming yourself, call your local emergency number or a crisis helpline immediately.
Prevention
You cannot always prevent stomach polyps, but you can lower your risk by treating H. pylori infection, avoiding smoking, limiting alcohol, and eating a healthy diet with plenty of fruit and vegetables.
Vaccines
There is no vaccine for stomach polyps.
Screening programmes
There is no routine screening for the general public. If you have risk factors or a family history, your doctor may recommend periodic endoscopy to catch any polyps early.
Complications
If left untreated
- Some types of polyps can grow larger over time.
- A small number may turn into cancer after several years.
- Polyps that bleed can cause iron-deficiency anemia.
Long-term outlook
The outlook is very good. Most stomach polyps are benign and never cause problems. For people with the type that can become cancer, regular monitoring and removal of suspicious polyps usually prevents cancer from developing.
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Always verify with your doctor
Health guidelines vary by country and region. The information in this article is based on international clinical guidelines but may not reflect the specific guidelines, medications, or practices in your country. Always discuss your health concerns with your own doctor or healthcare provider, and refer to your local national health guidelines where available.
Important notice This information is for educational purposes only. It does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider about your specific situation. If you are experiencing a medical emergency, call your local emergency services immediately.
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Sources and guidance
This article is educational and is prepared with reference to recognized health information and clinical guidance sources where available. Specific source links may vary by topic.
Last updated: August 1, 2026
Educational note: This information is for education only and is not a diagnosis.
Use it to support, not replace, advice from a licensed clinician.
If symptoms are severe, worsening, or urgent, call your local emergency number or seek emergency care.