Stomach pain and “gastric”: what the location can mean, and when it’s an emergency
Stomach pain is one of the most common reasons people visit a clinic, and “gastric” one of the most common explanations Malaysians give for it. Most tummy aches are caused by indigestion, a stomach bug or constipation and settle on their own. But some, such as appendicitis or an ectopic pregnancy, need urgent care. Here is what the location of the pain can suggest, how to treat indigestion, and the warning signs to know.
- What Malaysians call “gastric” is usually indigestion (dyspepsia) or gastritis: burning or gnawing pain in the upper middle tummy, bloating, early fullness and nausea.
- A common cause is the H. pylori bacteria, which is far more common among Malaysians of Indian and Chinese descent than Malays. It can be tested for with a breath test and treated with antibiotics.
- Pain that starts around the belly button and moves to the lower right may be appendicitis. One-sided lower pain in a woman who could be pregnant needs urgent assessment.
- Antacids and alginates help occasional indigestion. Don’t take pharmacy omeprazole for more than 2 weeks without seeing a doctor.
- Call 999 for sudden severe pain, vomiting blood, black stools, or pain with chest pain or breathlessness.
What is “gastric”? (Apa itu gastrik?)
In Malaysia, “gastric” (gastrik) is used for several stomach problems that cause similar symptoms:
- Indigestion (dyspepsia): pain or burning in the upper middle tummy, bloating, feeling full quickly, burping and nausea. In most people tests find no damage, which doctors call functional dyspepsia.
- Gastritis: inflammation of the stomach lining, often caused by H. pylori bacteria, painkillers such as ibuprofen and aspirin, or alcohol.
- Stomach (peptic) ulcer: a sore in the lining of the stomach or duodenum, causing burning pain that is often worse at night.
- Acid reflux (GORD): heartburn, a burning feeling rising from the stomach into the chest, and a sour taste.
Indigestion is common in Malaysia: a study in Kuala Lumpur found it in about 1 in 4 adults.
Causes of gastric pain
- H. pylori: a bacteria that infects the stomach lining and is the most common cause of chronic gastritis and ulcers. In Malaysian studies it is much more common among people of Indian and Chinese descent than Malays. In one Kelantan study, it was found in 29% of Indian, 24% of Chinese and 7% of Malay patients.
- Painkillers: regular use of anti-inflammatory painkillers (NSAIDs) such as ibuprofen, diclofenac and aspirin.
- Smoking and alcohol.
- Triggers: large, fatty or spicy meals, coffee, chocolate, being overweight, pregnancy and stress can bring on symptoms. The NHS notes that spicy food and stress don’t cause ulcers, but can make symptoms worse.
Skipping meals is often blamed for gastric. Studies have found links between irregular meals and indigestion, but haven’t shown that it is a cause.
What the location of the pain can mean
The location of pain gives clues, but it isn’t a diagnosis. Many conditions can cause pain in more than one place.
| Where it hurts | Possible causes |
|---|---|
| Upper middle (atas tengah) | Indigestion, gastritis, ulcer, acid reflux. Less often, pancreatitis (severe pain spreading to the back) or a heart attack |
| Upper right | Gallstones (severe pain under the right ribs, lasting up to several hours), liver problems |
| Upper left | Gastritis, ulcer, pancreas or spleen problems |
| Around the belly button, moving to the lower right | Appendicitis |
| Lower left (sebelah kiri) | Constipation, trapped wind, diverticulitis (more common in older adults), kidney stones |
| Side or back, spreading to the groin | Kidney stones, kidney infection |
| Lower tummy, all over | Stomach bug, irritable bowel syndrome (IBS), urine infection |
In women, lower tummy pain on one side can also be caused by period pain, ovulation pain, an ovarian cyst, endometriosis, pelvic infection, or an ectopic pregnancy. If there is any chance you could be pregnant, one-sided pain, especially with bleeding, dizziness or shoulder-tip pain, needs urgent assessment. See our pregnancy guide.
A heart attack can feel like indigestion: a burning or heavy feeling in the upper tummy or chest, with sweating, nausea, breathlessness, or pain spreading to the arm, neck or jaw. If you have these symptoms, especially with diabetes, high blood pressure or if you smoke, call 999. See our heart attack guide.
How to ease gastric and indigestion
Pharmacy medicines (ubat gastrik di farmasi):
- Antacids and alginates neutralise acid or form a protective layer. They work quickly for occasional symptoms. Take them with or after food, and don’t rely on them long term.
- Acid-reducing medicines such as omeprazole (a proton pump inhibitor) or famotidine reduce stomach acid. Don’t take omeprazole bought from a pharmacy for more than 2 weeks without seeing a doctor. Long-term use needs medical supervision, and it can hide the symptoms of more serious conditions.
- Avoid ibuprofen, diclofenac and aspirin unless a doctor has prescribed them. Use paracetamol for pain instead.
H. pylori: test and treat. If you have ongoing indigestion, your doctor may test for H. pylori, usually with a urea breath test. You need to stop acid-reducing medicines and antibiotics for 2 to 4 weeks beforehand, so ask your doctor. If the test is positive, the Malaysian H. pylori consensus recommends a 14-day course of an acid-reducing medicine plus antibiotics, followed by a repeat breath test to confirm the infection has gone.

Food and lifestyle for gastric
There is no single “gastric diet”. Studies haven’t shown that cutting out particular foods works for everyone. What helps most people:
- Eat smaller meals, and avoid eating 3 to 4 hours before bed.
- Notice and avoid your own trigger foods, such as spicy, fatty or fried food, coffee or chocolate.
- Cut down on alcohol, and stop smoking.
- Lose weight if you are overweight.
- Raise the head of your bed slightly if you get heartburn at night.
Children with stomach pain and vomiting
In children, stomach pain with vomiting is usually a stomach bug (gastroenteritis). Vomiting usually stops within 1 to 2 days and diarrhoea within 5 to 7 days. The main risk is dehydration:
- Give small, frequent sips of water or oral rehydration salts (ORS). Avoid fruit juice and fizzy drinks.
- Watch for fewer wet nappies, dark urine, a dry mouth, or a child who is unusually sleepy.
In Malaysia, remember dengue: severe tummy pain and persistent vomiting are dengue warning signs, often appearing as the fever comes down. See our dengue guide.
- Green, yellow-green or bloody vomit
- Pain that moves to the lower right, or gets steadily worse over a few hours, especially with fever
- Blood in the stool
- Drowsiness, not responding normally, or a stiff neck
- Signs of dehydration, or vomiting for more than 2 days
When stomach pain is an emergency
- Sudden, severe stomach pain, or pain that suddenly gets much worse
- Vomiting blood, or vomit that looks like coffee grounds
- Black, sticky stools, or heavy bleeding from the bottom
- A hard, swollen tummy that is very painful to touch
- Being unable to pass urine, stool or wind, with vomiting
- Stomach pain with chest pain or difficulty breathing
- Stomach pain during pregnancy
See a doctor soon if you have indigestion with unexplained weight loss, difficulty swallowing, persistent vomiting, anaemia, or a family history of stomach cancer, or if new indigestion starts in middle age. Your doctor may arrange an endoscopy, a camera test to look inside the stomach.
Where to get stomach pain checked
A GP can examine your tummy, test for H. pylori, prescribe treatment and refer you for an endoscopy or scan if needed. Stomach pain often strikes at night, so our directory shows clinics open late, at weekends and around the clock across Kuala Lumpur, Selangor and other states.
Browse the clinic directoryFrequently asked questions
What is gastric? (Apa itu gastrik?)
In Malaysia, “gastric” usually means indigestion or gastritis: burning or gnawing pain in the upper middle tummy, bloating, feeling full quickly and nausea. Common causes include H. pylori bacteria, painkillers such as ibuprofen, smoking and alcohol.
Why does the left side of my stomach hurt? (Kenapa perut sakit sebelah kiri?)
Common causes include trapped wind, constipation and gastritis. In older adults, diverticulitis can cause lower left pain, and kidney stones cause pain in the side. In women, ovarian cysts or period pain are possible. See a doctor if the pain is severe, persistent, or comes with fever or vomiting.
What is the best gastric medicine at a pharmacy?
Antacids and alginates give quick relief for occasional symptoms. Acid-reducing medicines such as omeprazole help more persistent symptoms, but shouldn’t be taken for more than 2 weeks without seeing a doctor.
What should I eat if I have gastric?
There is no single gastric diet. Eat smaller meals, avoid eating late at night, and avoid foods that trigger your own symptoms, such as spicy, fatty or fried food, coffee or alcohol.
My child has stomach pain and is vomiting. What should I do?
Most cases are a stomach bug. Give small sips of oral rehydration salts and watch for dehydration. Get urgent care for green or bloody vomit, pain moving to the lower right, severe or worsening pain, or a drowsy child.
Can gastric pain be a heart attack?
Yes, sometimes. A heart attack can feel like indigestion, with burning in the upper tummy or chest. Call 999 if it comes with sweating, breathlessness, or pain spreading to the arm, neck or jaw.
- Goh KL et al. — Malaysian consensus on Helicobacter pylori infection (JGH Open, 2023)
- Asian consensus report on functional dyspepsia (2012)
- Kaur & Naing — Prevalence of H. pylori in Kelantan by ethnicity (MJMS, 2003)
- Lee, Raj & Graham — H. pylori infection and gastric cancer in Malaysia (Helicobacter, 2013)
- NHS — Stomach ache (Oct 2026)
- NHS — Indigestion
- NHS — Heartburn and acid reflux
- NHS — Stomach ulcer (Aug 2025)
- NHS — Omeprazole (Sep 2025)
- NHS — Appendicitis
- NHS — Acute pancreatitis (Mar 2026)
- NHS — Diarrhoea and vomiting
- Cleveland Clinic — Gastritis
- Cleveland Clinic — Abdominal pain (Nov 2025)
- American Academy of Pediatrics — Abdominal pain in children
- World Health Organization — Dengue and severe dengue (Aug 2025)
- Malaysia National Cancer Registry Report 2017–2021 (summary)


