Co-authored by: Dr. Sunil Kumar N, Gastroenterologist & Hepatologist, Seetha Gastro & Kidney Clinic. Vasanthi Senthilvel, Chief Nutritionist, Newtrist Nutritionist Dietitian Dietician.
Medical Disclaimer: The information on this page is for general educational purposes only and is not intended to replace personalised medical or nutrition care.
A stomach ache rarely comes with an explanation. It might feel like pressure beneath your ribs, a cramp around your navel or a sharp pain on one side. Sometimes it disappears before you can describe it, then returns later in a different way.
The question is not only how much it hurts. Where the pain starts, what brings it on and how it changes can help reveal whether it is a temporary digestive upset or something that needs medical attention.
Here is how to make sense of the most common stomach pain causes without treating every ache as the same problem.
Key Takeaway
Common stomach pain causes include indigestion, trapped gas, constipation, stomach infections, gastritis and ulcers. Pain location and timing can suggest possible causes, but do not confirm a diagnosis. Sudden severe pain or pain with serious warning signs needs emergency care. Pain that persists, worsens or repeatedly returns should be medically evaluated.

Table of Contents
What Are the Common Causes of Stomach Pain?
“Stomach pain” is an everyday term for discomfort anywhere in the abdomen. The cause may involve the stomach itself, the intestines or another nearby organ.
Indigestion and Trapped Gas
Indigestion can cause upper abdominal pressure, burning or uncomfortable fullness, especially after a meal. Trapped gas is more likely to feel like bloating or cramping that shifts around the abdomen and sometimes eases after passing gas. The sensations can overlap, but they do not necessarily have the same cause.
Constipation
When stool moves slowly through the intestines, abdominal pressure and cramping may develop. Hard stools, straining or fewer bowel movements than usual can provide clues. Some people feel better after passing stool, while others continue to experience bloating until their bowel pattern returns to normal.
Stomach Infections and Food Poisoning
A stomach infection often causes cramps along with diarrhoea, nausea, vomiting or fever. The pain may spread across the abdomen rather than remain in one spot. Food poisoning can follow contaminated food or water; other infections can spread between people. Many uncomplicated episodes improve within a few days, although the course can vary.
Gastritis and Stomach Ulcers
Gastritis involves inflammation of the stomach lining. A stomach ulcer is a sore in that lining. Either may be associated with burning or gnawing upper abdominal discomfort, sometimes around mealtimes. Because symptoms overlap with other problems, the feeling of “acidity” alone cannot establish what is happening inside the stomach.
Pain From Other Abdominal Organs
Not every stomach ache begins in the digestive tract. Gallstones can cause upper abdominal pain, appendicitis can produce pain that moves towards the lower right abdomen, and kidney stones may cause pain extending from the side or back towards the groin. These different patterns explain why the precise location matters.

What Does the Location of Stomach Pain Suggest?
The part of the abdomen that hurts can help a doctor narrow the possibilities. Use the following as clues rather than as a way to identify a condition on your own.
| Where the pain is felt | Possible clues |
| Upper middle abdomen | Indigestion or a problem involving the stomach or upper digestive tract |
| Upper right abdomen | The gallbladder or nearby organs may be involved |
| Around the navel | Pain may arise from the intestines or an early abdominal condition |
| Lower right abdomen | Appendicitis is one possible cause, particularly if pain is increasing |
| Lower abdomen | Bowel, urinary or pelvic causes may need consideration |
| Side or back, extending towards the groin | A urinary tract or kidney-related cause may be possible |
Abdominal pain is not always felt directly over the organ responsible. A clinician considers the whole symptom picture, rather than using a location chart as a diagnosis.

What Can the Timing and Pattern of Stomach Pain Reveal?
A few details about how the pain behaves can be more useful than simply calling it “sharp” or “dull.”
Pain After Eating
Discomfort that starts soon after a meal may come with fullness or pressure. Pain appearing later may have a different explanation. If meals regularly bring on symptoms, the interval between eating and the first sign of discomfort is worth noticing. The timing offers a clue, not proof that a particular food is responsible.
Pain That Comes in Waves
Cramping pain sometimes builds, eases and then returns. Other people experience a steady ache with occasional stronger episodes. Whether the pain disappears fully between episodes, and how long each wave lasts, can help describe the pattern accurately.
Pain That Changes Location or Intensifies
An ache that begins in one place and later concentrates elsewhere deserves particular attention. So does pain that is becoming more intense or is markedly worse with movement. These changes can tell a doctor more than the initial location alone.
When Does Stomach Pain Need Medical Attention?
The urgency depends on the onset and progression of pain, together with any other symptoms. Some combinations call for emergency care; others need a prompt appointment.
Signs That Require Emergency Care
Seek emergency medical care for sudden, severe abdominal pain, especially if it is accompanied by any of the following:
• A rigid abdomen or marked pain when the abdomen is touched
• Vomiting blood or material resembling coffee grounds
• Black, tar-like stools or substantial bleeding from the rectum
• Fainting, collapse, chest pain or difficulty breathing
• A swollen, painful abdomen with an inability to pass stool or gas
• An inability to pass urine, particularly with significant pain
Signs That Need a Prompt Medical Appointment
Contact a doctor promptly if the pain is getting worse, becomes focused in a new area or fails to improve over a day or two. Fever, repeated vomiting, difficulty keeping fluids down, unexplained weight loss or a marked loss of appetite alongside abdominal pain also warrant assessment.
If you are pregnant or might be pregnant, new or worsening abdominal pain should be assessed promptly. The location and apparent severity do not always reflect the urgency.
When Is Recurring Stomach Pain Worth a Consultation?
An occasional short-lived ache may settle without becoming a pattern. Repeated pain is different. You may recognise the exact place where it starts but still have no explanation for why it keeps happening.
A consultation is useful when the pain is affecting your eating, sleep or routine, or when you find yourself trying to predict the next episode. The aim is to establish which possible causes fit your symptoms and whether further assessment is needed, not to assume that every stomach ache requires extensive testing.
Understand Your Stomach Pain at Seetha Gastro & Kidney Clinic
When the same stomach pain keeps interrupting ordinary days, knowing the cause can help you decide what to do next.
At Seetha Gastro & Kidney Clinic in BTM Layout 2nd Stage, Bengaluru, Dr. Sunil Kumar N, Consultant Gastroenterologist and Hepatologist, evaluates abdominal pain and digestive concerns. The consultation focuses on understanding your symptoms and deciding what, if anything, needs further investigation.
If stomach pain has become a recurring question in your life, book a consultation at Seetha Gastro & Kidney Clinic or call +91 86180 95450.
Frequently Asked Questions About Stomach Pain
Can stomach pain occur without diarrhoea or changes in bowel movements?
Yes. Some abdominal problems cause pain without altering stool frequency or consistency. Normal bowel movements do not rule out conditions affecting the stomach or other abdominal organs.
Why does stomach pain sometimes spread to the back?
Certain organs share nerve pathways that can make pain felt away from its source. Pain involving the gallbladder, pancreas or urinary system may be felt in the back. The direction of the pain is one clue among several.
Can stress contribute to a stomach ache?
Yes. Stress can affect gut movement and sensitivity through communication between the brain and digestive system. But stress is not an explanation for every unexplained stomach ache, especially when the symptoms are new or changing.
Can a stomach problem be serious even without a fever?
Yes. Fever occurs with some abdominal conditions, but it is not present in every serious problem. How pain begins, whether it changes and the presence of other symptoms remain important when deciding how quickly to seek care.
