Blood Tests for Stomach Health Issues
Learn which blood tests help diagnose stomach issues like bloating, pain, or nausea. Get early answers and book tests easily with Apollo 24|7.
Written by Dr. Dhankecha Mayank Dineshbhai
Reviewed by Dr. D Bhanu Prakash MBBS, AFIH, Advanced certificate in critical care medicine, Fellowship in critical care medicine
Last updated on 8th Aug, 2025
Introduction
Stomach health issues can be uncomfortable and sometimes worrisome. Whether you're experiencing persistent pain, bloating, nausea, or other digestive problems, blood tests can be an essential tool in diagnosing the root cause. Understanding these tests can help you take the right steps toward better digestive health.
Why Are Blood Tests Important for Stomach Health?
Blood tests provide valuable insights into how your digestive system is functioning. They help doctors detect infections, inflammation, nutrient deficiencies, or other underlying conditions affecting your stomach. Unlike invasive procedures, blood tests are quick, simple, and often the first step in diagnosing stomach-related problems.
Common Blood Tests for Stomach Health Issues
Here are some key blood tests that doctors may recommend if you're experiencing stomach problems:
1. Complete Blood Count (CBC)
- What it checks: Levels of red blood cells, white blood cells, and platelets.
- Why it’s done: Helps detect anaemia (which can be caused by bleeding ulcers or vitamin deficiencies) or infections that may be affecting digestion.
2. Liver Function Tests (LFTs)
What it checks: Enzymes, proteins, and bilirubin levels in the liver.
Why it’s done: Liver problems can sometimes cause stomach pain, nausea, or jaundice.
3. Kidney Function Tests
- What it checks: Urea, creatinine, and electrolytes.
- Why it’s done: Kidney issues can sometimes mimic stomach problems, causing nausea and vomiting.
4. Celiac Disease Antibody Test
- What it checks: Presence of antibodies (like tTG-IgA) that indicate celiac disease.
- Why it’s done: Helps diagnose gluten intolerance, which can cause bloating, diarrhoea, and stomach pain.
5. Helicobacter pylori (H. pylori) Test
- What it checks: Antibodies or antigens for H. pylori bacteria.
- Why it’s done: H. pylori infection is a common cause of gastritis, ulcers, and stomach cancer.
6. Vitamin B12 and Iron Levels
- What it checks: Deficiencies in B12 or iron.
- Why it’s done: Low levels can indicate poor absorption due to stomach conditions like gastritis or celiac disease.
7. Amylase and Lipase Tests
- What it checks: Pancreatic enzymes.
- Why it’s done: High levels may indicate pancreatitis, which can cause severe stomach pain.
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Symptoms That May Require Blood Tests
If you experience any of the following symptoms persistently, your doctor may recommend blood tests:
- Chronic stomach pain or cramps
- Frequent bloating or gas
- Unexplained weight loss
- Nausea or vomiting
- Diarrhoea or constipation
- Blood in stool or black stools
- Fatigue or weakness (possible anaemia)
How to Prepare for a Blood Test
- Fasting: Some tests (like glucose or lipid tests) may require fasting for 8-12 hours.
- Medications: Inform your doctor about any medications you take, as some can affect results.
- Hydration: Drink water unless instructed otherwise.
What Happens After the Test?
Your doctor will review the results and discuss any abnormalities. Depending on the findings, they may recommend:
- Further tests (like endoscopy or stool tests)
- Dietary changes
- Medications (for infections or inflammation)
- Follow-up tests to monitor progress
Lifestyle Tips for Better Stomach Health
While blood tests help diagnose problems, maintaining a healthy gut is key to prevention. Here are some tips:
- Eat a balanced diet: Include fibre (fruits, vegetables, whole grains) and probiotics (yoghurt, fermented foods).
- Stay hydrated: Drink plenty of water to aid digestion.
- Avoid trigger foods: Spicy, fatty, or processed foods can worsen stomach issues.
- Manage stress: Stress can trigger acid reflux and IBS. Try relaxation techniques like yoga or meditation.
- Exercise regularly: Physical activity helps digestion and reduces bloating.
When to See a Doctor
If you experience persistent stomach issues, don’t ignore them. Early diagnosis can prevent complications. Consider booking a consultation if:
- Symptoms last more than a few weeks
- You notice blood in vomit or stool
- You have unexplained weight loss
Book a Blood Test with Apollo 24|7
If you're concerned about your stomach health, Apollo 24|7 offers convenient blood testing services. You can schedule a test from home or visit a nearby lab. Early detection leads to better treatment; take charge of your digestive health today!
Conclusion
Stomach problems can disrupt daily life, but blood tests provide a clear path to diagnosis and treatment. By understanding these tests and making simple lifestyle changes, you can improve your digestive health and overall well-being.
If you have concerns, don’t hesitate to consult a doctor and get the right tests done. Your stomach will thank you!
Would you like to book a blood test or speak to a specialist? Visit Apollo 24|7 for easy scheduling and expert care. Stay healthy!
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