Abdominal Pain Causes: 12 Common Reasons for Stomach Pain

June 9, 2026by user0

Abdominal pain is one of the most common health complaints affecting people of all ages. While some abdominal pain causes are minor and temporary, others may indicate serious medical conditions that require prompt diagnosis and treatment. Understanding the various abdominal pain causes can help you recognize warning signs and seek medical care at the right time.

As a General and Laparoscopic Surgeon, Dr. Kiran KJ frequently evaluates patients experiencing abdominal pain caused by conditions ranging from gallstones and appendicitis to hernias and gastrointestinal disorders.

What Is Abdominal Pain?

Abdominal pain refers to discomfort felt anywhere between the chest and pelvis. The pain may be sharp, dull, cramping, burning, or constant. The location, severity, and duration of the pain often provide important clues about the underlying cause.

There are numerous abdominal pain causes, and identifying the exact reason is essential for proper treatment.

1. Appendicitis

Appendicitis is one of the most serious abdominal pain causes and requires urgent medical attention.

Symptoms:

  • Pain that starts around the belly button
  • Pain shifting to the lower right abdomen
  • Fever
  • Nausea and vomiting
  • Loss of appetite

If left untreated, the appendix can rupture and cause a life-threatening infection.

2. Gallstones

Gallstones are a very common cause of upper abdominal pain.

Symptoms:

  • Pain in the upper right abdomen
  • Pain after eating oily or fatty foods
  • Nausea and vomiting
  • Pain radiating to the back or shoulder

Gallstones can also lead to gallbladder infection and pancreatitis if not treated.

3. Acid Reflux (GERD)

Acid reflux occurs when stomach acid moves back into the food pipe.

Symptoms:

  • Burning sensation in the chest
  • Upper abdominal discomfort
  • Sour taste in the mouth
  • Difficulty swallowing

GERD is among the most frequently encountered abdominal pain causes in adults.

4. Gastritis

Gastritis refers to inflammation of the stomach lining.

Common Symptoms:

  • Burning stomach pain
  • Nausea
  • Vomiting
  • Loss of appetite
  • Bloating

Common triggers include infections, alcohol consumption, stress, and long-term painkiller use.

5. Hernia

A hernia develops when tissue protrudes through a weak area of the abdominal wall.

Symptoms:

  • Visible swelling or bulge
  • Pain while lifting heavy objects
  • Discomfort during coughing
  • Abdominal heaviness

Hernias usually worsen over time and often require surgical repair.

6. Pancreatitis

Pancreatitis occurs when the pancreas becomes inflamed.

Symptoms:

  • Severe upper abdominal pain
  • Back pain
  • Nausea and vomiting
  • Fever

Gallstones are one of the leading abdominal pain causes associated with pancreatitis.

7. Intestinal Infection

Bacterial and viral infections can cause temporary abdominal pain.

Symptoms:

  • Abdominal cramps
  • Diarrhea
  • Vomiting
  • Fever
  • Dehydration

Most infections improve with hydration and supportive treatment.

8. Constipation

Constipation is among the most overlooked abdominal pain causes.

Symptoms:

  • Lower abdominal discomfort
  • Bloating
  • Difficulty passing stools
  • Feeling of fullness

Increasing water and fiber intake can often relieve symptoms.

9. Irritable Bowel Syndrome (IBS)

IBS is a chronic digestive disorder that causes recurrent abdominal pain.

Symptoms:

  • Cramping
  • Bloating
  • Diarrhea
  • Constipation
  • Altered bowel habits

Stress often worsens IBS symptoms.

10. Kidney Stones

Kidney stones may cause severe pain that is often mistaken for abdominal problems.

Symptoms:

  • Sharp pain in the side or lower abdomen
  • Pain radiating to the groin
  • Blood in urine
  • Nausea

Kidney stones are a common emergency-room diagnosis.

11. Peptic Ulcers

Peptic ulcers are sores that develop in the stomach or upper intestine.

Symptoms:

  • Burning abdominal pain
  • Pain between meals
  • Nausea
  • Bloating

Helicobacter pylori infection and excessive painkiller use are common causes.

12. Bowel Obstruction

A blockage in the intestine can prevent food and fluids from passing normally.

Symptoms:

  • Severe abdominal pain
  • Vomiting
  • Abdominal swelling
  • Inability to pass gas or stool

This condition often requires urgent surgical treatment.

When Should You See a Surgeon for Abdominal Pain?

You should seek immediate medical attention if abdominal pain is accompanied by:

  • Severe or worsening pain
  • Persistent vomiting
  • Fever
  • Jaundice
  • Blood in stools
  • Abdominal swelling
  • Difficulty passing stool or gas
  • Sudden onset of intense pain

These symptoms may indicate appendicitis, gallstones, bowel obstruction, pancreatitis, or other serious surgical conditions.

How Are Abdominal Pain Causes Diagnosed?

To determine the exact abdominal pain causes, your doctor may recommend:

  • Physical examination
  • Blood tests
  • Ultrasound scan
  • CT scan
  • Endoscopy
  • Urine analysis

Accurate diagnosis helps ensure timely and effective treatment.

Conclusion

There are many different abdominal pain causes, ranging from simple digestive problems to serious surgical emergencies. Conditions such as appendicitis, gallstones, hernia, pancreatitis, and bowel obstruction should never be ignored. Early diagnosis and treatment can prevent complications and improve outcomes.

If you are experiencing persistent or severe abdominal pain, consult Dr. Kiran KJ for expert evaluation, diagnosis, and advanced laparoscopic treatment options.

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Dr Kiran KJ

Dr Kiran KJ is an expert surgeon and hands on medical professional, Dr. Kiran K J is an expert in laparoscopic, Bariatric and laser surgeries.

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