Is It Gastroparesis or Something Else? Understanding the Signs, Tests, and Diagnosis

• Do you feel full after just a few bites?
• Is your stomach bloated or painful after meals?
• Do you feel nauseated or even vomit undigested food?
• These signs might mean something is off with your digestion.
• Could it be gastroparesis—or is it something else?
• Gastroparesis is a condition where your stomach empties food too slowly.
• It’s not caused by a blockage. Instead, it’s often due to nerve or muscle problems.
• But here's the tricky part—many conditions have similar symptoms.

In this article, you’ll learn:

• What signs to look out for
• Other conditions that act like gastroparesis
• The tests used to diagnose it
• What to expect from your doctor

Getting the right diagnosis is the first step to feeling better.

What Is Gastroparesis?

Gastroparesis means “stomach paralysis.” The stomach muscles don’t work the way they should. This slows down how fast food leaves the stomach.

Common Symptoms:

• Feeling full after a few bites (early satiety)
• Nausea
• Vomiting undigested food
• Bloating or upper belly discomfort
• Loss of appetite
• Heartburn or acid reflux
• Weight loss without trying
• Blood sugar changes (especially in people with diabetes)

Symptoms range from mild to severe. Some people feel sick only sometimes. Others struggle daily.

Could It Be Something Else?

Before diagnosing gastroparesis, doctors rule out similar conditions.

1. Irritable Bowel Syndrome (IBS)

• IBS affects the large intestine.
• It can cause gas, bloating, and changes in bowel habits.
• It shares symptoms with gastroparesis—especially bloating.

2. Gastroesophageal Reflux Disease (GERD)

• GERD causes acid to rise into the esophagus.
• Symptoms include nausea, bloating, and heartburn.
• Unlike gastroparesis, it doesn’t affect food emptying.

3. Functional Dyspepsia

• This causes upper belly pain and early fullness.
• It doesn't show damage on tests but feels a lot like gastroparesis.

4. Food Intolerances

• Reactions to dairy, gluten, or certain sugars can cause bloating, gas, and nausea.
• Symptoms usually improve with diet changes.

5. Obstructions or Structural Problems

• Tumors, ulcers, or scar tissue can block digestion.
• These must be ruled out with scans or scopes.

6. Diabetes and Thyroid Issues

• Uncontrolled diabetes can damage stomach nerves.
• An underactive thyroid (hypothyroidism) can slow digestion too.

How Is Gastroparesis Diagnosed?

A diagnosis isn’t based on symptoms alone. Doctors use several steps and tests.

Step 1: Medical History

Your doctor will ask:

• When did symptoms start?
• What makes them worse or better?
• Any weight loss?
• Which medicines you take
• Past surgeries or medical conditions

Step 2: Basic Tests

These help rule out other issues:

• Blood tests – Check for thyroid problems, infections, or low iron
• Electrolyte panel – Checks mineral levels
• Blood sugar test – Screens for diabetes

Step 3: Imaging and Scoping

Used to spot blockages or other problems:

• Ultrasound – Looks at the liver, pancreas, and gallbladder
• Upper endoscopy (EGD) – Uses a camera to see the stomach lining
• CT scan – Gives a detailed look at the belly are

If everything looks normal, your doctor may check how fast food leaves your stomach.

Step 4: Gastric Emptying Study

This is the main test for diagnosing gastroparesis.

How It Works:

• You eat a small meal with a safe tracer
• A scanner checks how much food is left after 1, 2, and 4 hours
• If more than 10% is left after 4 hours, it means delayed emptying

Other Helpful Tests:

• SmartPill (Wireless Capsule): Tracks how fast food moves through the GI tract
• 13C Breath Test: Measures how your body breaks down food
• Manometry: Measures pressure and movement in the stomach and intestine

These tests are for tricky cases or when results are unclear.

When to See a Specialist

You may need a gastroenterologist if:

• Symptoms last more than 2–4 weeks
• You lose weight without trying
• You vomit often or can’t eat well
• You have diabetes with unstable sugar levels
• You don’t get better with diet or medicine

A specialist can guide your next steps.

What Happens After a Diagnosis?

If you’re diagnosed with gastroparesis, treatment focuses on relief and nutrition.

Your Plan May Include:

• Diet changes – Eat smaller, low-fat, low-fiber meals
• Medicines – To help the stomach empty or ease nausea
• Blood sugar control – For people with diabetes
• Nutrition help – Supplements or feeding tubes in severe cases
• Lifestyle support – Hydration, movement, and eating posture tips

The goal is to feel better and stay healthy.

Final Thoughts

• Gastroparesis can be hard to spot.
• Its symptoms look like many other conditions.
• That’s why proper testing is so important.
• If you're always bloated, nauseated, or full too soon—speak up.
• Keep a symptom journal.
• Talk to your doctor.
• Ask for more testing if needed.
• Early diagnosis helps you feel better sooner.
• Don’t wait—your comfort and health matter.