Stomach Pain by Location: Causes, Red Flags & Relief

Stomach pain is tricky because the same symptom can point to something minor or something that really should not be ignored. Indigestion after a heavy meal is one thing. Sudden worsening pain with fever, vomiting, or tenderness in one spot is another. This guide is here to help sort the common, self-limiting causes from the situations where waiting is the wrong move.

Abdominal Pain by Location: What Your Pain Map Means

Where the pain sits can give a useful clue about the cause, even though location alone is never enough to diagnose the problem. Think of an abdominal pain location map as a starting point rather than an answer. The table below groups common causes by quadrant — upper-right, upper-left, lower-right, lower-left, and the central areas.

Common Causes of Stomach Pain

OTC Treatments: What to Use and When

Matching the right OTC medicine to your symptoms is key. Here is a practical breakdown of what is available at Australian pharmacies, organised by condition.

For Indigestion and Heartburn: Antacids

Antacids like Gaviscon and Mylanta neutralise excess stomach acid for fast, short-lived relief (1-3 hours) — ideal for occasional, mild symptoms after meals. For the full antacid-to-PPI ladder and how to choose between products, see our heartburn and reflux relief guide.

For Frequent Heartburn: Proton Pump Inhibitors (PPIs)

If heartburn happens more than twice a week, a PPI such as Nexium 24HR (esomeprazole) works at the source by reducing acid production, and is intended for short-term OTC use only (up to 2 weeks without GP advice). Full dosing guidance and when to step up from antacids is covered in our heartburn and reflux relief guide.

For Abdominal Cramps and IBS Pain: Antispasmodics

Buscopan (hyoscine butylbromide) is an antispasmodic that relaxes the smooth muscle in the gut wall, easing cramping abdominal pain, period-related cramps, and IBS-related pain. It works specifically on the gut, so it does not cause drowsiness. For a full breakdown of antispasmodics and other OTC options matched to IBS subtype, see our IBS treatment guide.

For Diarrhoea: Loperamide (Imodium)

Imodium (loperamide) slows gut motility to reduce the frequency and urgency of loose bowel motions, useful for symptom control in adults (for example, while travelling or at work). Full dosing and when to avoid it are covered in our gastro and diarrhoea relief guide.

For Dehydration (During Gastro or Diarrhoea): Oral Rehydration

Dehydration is the main risk with gastro and prolonged diarrhoea, especially in children and older adults. Hydralyte replaces lost fluids, electrolytes, and glucose in the correct ratio, and is far more effective than water alone or sports drinks. See our gastro and diarrhoea relief guide for full rehydration guidance.

OTC Treatment Quick Reference

Red Flags: When Stomach Pain Needs Urgent Medical Attention

Most stomach pain is not dangerous. But certain warning signs mean you should seek urgent medical care — visit your nearest emergency department or call 000 (triple zero) in Australia. Do not wait to see if things improve.

Triage Table: Stay Home, See a GP, or Go to Emergency?

Use this as a guide to decide your next step. It does not replace professional advice — when in doubt, call Healthdirect on 1800 022 222 (free, 24/7) to speak with a registered nurse, or call triple zero (000) in an emergency.

Appendicitis: What to Watch For

Appendicitis is inflammation of the appendix and is a surgical emergency. It is most common in people aged 10-30 but can happen at any age. The classic progression is: vague pain around the belly button that over 12-24 hours moves to the lower right abdomen and becomes sharper and more constant. The pain typically gets worse with movement, coughing, or pressing on the area and then releasing (rebound tenderness). Nausea, loss of appetite, and a mild fever often accompany the pain. If you suspect appendicitis, do not eat or drink anything (in case surgery is needed) and get to an emergency department.

Bowel Obstruction: Know the Signs

A bowel obstruction occurs when something blocks the normal passage of food and waste through the intestines. Warning signs include severe cramping pain that comes in waves, inability to pass gas or stool, a visibly bloated or distended abdomen, and vomiting (which may become faecal in severe cases). This is a medical emergency requiring hospital treatment. Risk is higher in people who have had previous abdominal surgery.

When to See a GP (Non-Urgent but Important)

Not all stomach pain needs the emergency department, but some patterns warrant a GP visit within a few days. Book an appointment if you experience any of the following.

• radio_button_uncheckedStomach pain that persists for more than 3-5 days without improving
• radio_button_uncheckedRecurring pain in the same location over weeks or months
• radio_button_uncheckedPain that regularly wakes you from sleep at night
• radio_button_uncheckedUnintentional weight loss alongside stomach pain
• radio_button_uncheckedA noticeable change in bowel habits lasting more than 2 weeks (new constipation, diarrhoea, or alternating between the two)
• radio_button_uncheckedHeartburn or reflux symptoms occurring more than twice a week
• radio_button_uncheckedDifficulty swallowing or a feeling of food getting stuck
• radio_button_uncheckedPain that is affecting your ability to eat, work, or go about daily activities
• radio_button_uncheckedA new lump or swelling in your abdomen
• radio_button_uncheckedYou are over 50 and experiencing new or changed abdominal symptoms — your GP may recommend bowel cancer screening

Home Remedies That May Help

For mild stomach pain without red flags, these simple home strategies can provide comfort while your body recovers. The evidence for most home remedies is limited, but they are generally safe and have a long track record of traditional use.

• radio_button_uncheckedThe BRAT diet: Bananas, Rice, Applesauce, and Toast. These bland, low-fibre foods are gentle on the stomach and can help firm up stools during diarrhoea. While the strict BRAT diet is no longer recommended for extended use (it lacks adequate nutrition), eating bland, easily digestible foods for the first 24-48 hours of gastro or food poisoning is still sensible advice. Gradually reintroduce normal foods as symptoms improve, and avoid fatty, spicy, or dairy-heavy foods until you feel better.
• radio_button_uncheckedGinger: has moderate evidence for relieving nausea and may help with indigestion. Fresh ginger tea (steep a few slices of fresh ginger root in hot water for 5-10 minutes) is the most common preparation. Generally considered safe in food amounts, though it may interact with blood-thinning medications. Evidence quality: moderate for nausea, limited for other stomach complaints.
• radio_button_uncheckedPeppermint tea: has antispasmodic properties that may help relax gut muscles and relieve bloating and gas. A cup after meals is a popular remedy. Note that peppermint can worsen reflux and heartburn in some people by relaxing the lower oesophageal sphincter — avoid it if reflux is your issue. Evidence quality: moderate for IBS symptoms, limited for general stomach pain.
• radio_button_uncheckedHeat pack: applying a heat pack or hot water bottle to the abdomen can help relieve cramping pain. The warmth relaxes smooth muscle and can be particularly soothing for period-related stomach cramps, IBS pain, and general abdominal tension. Wrap the heat pack in a towel to avoid burns and apply for 15-20 minutes at a time. Evidence quality: moderate for pain relief, supported by common clinical practice.
• radio_button_uncheckedRest and fluids: sometimes the most effective remedy is rest. Avoid solid food for a few hours if you feel nauseated, then start with small sips of clear fluids — water, diluted apple juice, or an oral rehydration solution like Hydralyte. Avoid caffeine, alcohol, and sugary soft drinks, which can irritate the stomach or worsen dehydration. Aim for frequent small sips rather than large gulps, especially if vomiting is present.

Home Remedies to Avoid

• radio_button_uncheckedBicarbonate of soda (baking soda): While it does neutralise acid, it is high in sodium and can cause rebound acid production. Use a proper antacid instead.
• radio_button_uncheckedMilk for heartburn: A common myth. Milk may briefly coat the stomach, but the fat and protein actually stimulate more acid production, making reflux worse.
• radio_button_uncheckedApple cider vinegar: No credible evidence supports its use for stomach pain, and it can irritate the oesophagus and damage tooth enamel.
• radio_button_uncheckedCharcoal tablets for general stomach pain: Activated charcoal has a role in treating certain poisonings in hospital settings, but OTC charcoal tablets have no proven benefit for everyday stomach pain or gas.

Special Populations

Some groups need extra caution when it comes to stomach pain and OTC treatments.

• radio_button_uncheckedPregnant or breastfeeding: Always consult your GP, obstetrician, or pharmacist before taking any OTC stomach medicine. Some antacids are considered safe in pregnancy, but others are not. Abdominal pain in pregnancy should always be assessed by a health professional.
• radio_button_uncheckedChildren under 12: Many OTC digestive medicines are not suitable for young children. Hydralyte is safe for children (use the paediatric dosage), but Imodium and Buscopan have age restrictions. See your pharmacist or GP for children's dosing advice.
• radio_button_uncheckedOlder adults (over 65): Dehydration can develop more quickly in older people. Seek medical attention sooner if gastro symptoms are present. Some medicines, including PPIs, have additional considerations for long-term use in the elderly.
• radio_button_uncheckedPeople on blood thinners or other regular medications: Always check with your pharmacist for potential interactions before taking OTC stomach medicines.

Frequently Asked Questions

How long should I wait before seeing a doctor for stomach pain?

If you have any red flag symptoms (sudden severe pain, blood in stool or vomit, rigid abdomen, high fever, or pain during pregnancy), do not wait — seek urgent medical care immediately. For milder pain without red flags, it is reasonable to try home treatment and OTC remedies for 24-48 hours. If the pain persists beyond 3-5 days, keeps coming back, or is getting worse, book a GP appointment.

Is it safe to take antacids every day?

Occasional antacid use is safe for most adults. However, if you find yourself reaching for antacids most days, this suggests an underlying issue that needs investigation. Daily antacid use for more than 2 weeks warrants a GP visit. Long-term overuse of some antacids (particularly those containing aluminium or magnesium) can affect mineral balance. Your GP may recommend a short course of a PPI or further investigation.

Can stress cause stomach pain?

Yes. The gut and brain are closely connected through the gut-brain axis. Stress, anxiety, and emotional distress can trigger or worsen stomach cramps, nausea, diarrhoea, and IBS symptoms. This is sometimes called a 'nervous stomach'. The pain is real — it is not imaginary. Managing stress through exercise, sleep, relaxation techniques, and professional support can genuinely improve gut symptoms. If stress-related gut problems are ongoing, talk to your GP.

Should I take Imodium for gastro?

Generally, no — at least not in the first 24 hours. With viral gastro, diarrhoea is the body's way of clearing the infection. Taking Imodium too early can prolong the illness. Focus on staying hydrated with an oral rehydration solution like Hydralyte. However, if diarrhoea is persisting beyond 48 hours and there is no blood or high fever, Imodium may provide symptom relief while you recover. Always avoid Imodium if you suspect bacterial food poisoning.

What is the difference between Gaviscon and Mylanta?

Both are antacids that neutralise stomach acid and provide fast relief. The key difference is that Gaviscon also forms a physical barrier (called a raft) on top of your stomach contents, which helps prevent acid from flowing back up into the oesophagus. This makes Gaviscon particularly useful if reflux is your main problem. Mylanta Double Strength is effective for general indigestion, bloating, and wind. Your pharmacist can help you choose between them based on your specific symptoms.

What does pain on the right side of my abdomen mean?

It depends on whether the pain is in the upper or lower right. Upper right abdominal pain is often linked to the gallbladder (gallstones) or liver, and may feel sharp or colicky and radiate to the right shoulder. Lower right abdominal pain is the classic location for appendicitis — especially if it began near the belly button and then shifted, becoming sharper and more constant. In women it can also be linked to an ovarian cyst. Pain on the right side of the abdomen that is severe, worsening, or comes with fever should be assessed urgently.

What does pain in the lower left abdomen mean?

Lower left abdominal pain is most commonly due to constipation, trapped wind, or irritable bowel syndrome (IBS), and often eases after passing wind or opening your bowels. In older adults it can sometimes be diverticulitis (inflamed pouches in the bowel wall), which tends to come with fever and constant tenderness and needs a GP review. As with any abdominal pain, sudden severe pain, a rigid abdomen, blood in your stool, or a high fever are red flags that need urgent care.

Can indigestion cause severe stomach pain?

Indigestion can be quite uncomfortable, causing burning, bloating, and a gnawing ache in the upper abdomen — but it should not cause sudden, severe, or worsening pain. If pain you assumed was indigestion becomes intense, spreads to your chest, jaw, neck, or back, or comes with sweating, breathlessness, or nausea, do not dismiss it: these can be signs of a heart problem rather than the stomach. Call triple zero (000) if you are worried. Severe upper abdominal pain can also point to a peptic ulcer, gallstones, or pancreatitis, all of which need medical assessment.

What OTC medicines may help relieve stomach cramps?

For cramping or spasm-type pain (including IBS-related and period-related cramps), an antispasmodic such as Buscopan (hyoscine butylbromide) may help relieve the spasm by relaxing the muscle in the gut wall. For cramping that comes with bloating and trapped wind, a simethicone product may help break up gas bubbles. For cramping linked to indigestion or reflux, an antacid such as Mylanta or Gaviscon may help relieve the symptoms. A heat pack on the abdomen can also be soothing. Always read the label, check age restrictions, and ask your pharmacist if you are pregnant, breastfeeding, or taking other medicines. If cramps are severe, persistent, or come with any red flags, see a doctor.

What stomach symptoms should I call 000 for?

Call triple zero (000) for an ambulance if you have sudden, severe abdominal pain that takes your breath away, a rigid abdomen that is extremely tender to touch, vomiting blood or passing black/tarry stools, abdominal pain with chest pain or breathlessness, or pain with fainting, a racing heartbeat, and cold, clammy skin (possible signs of internal bleeding or shock). Severe abdominal pain during pregnancy should also be treated as an emergency. If you are unsure how serious your symptoms are, call Healthdirect on 1800 022 222 for advice from a registered nurse.

When should I go to the emergency department versus waiting for a GP?

Go to the emergency department (or call 000) for: sudden severe pain, vomiting blood, blood in stool, a rigid abdomen, pain with high fever, suspected appendicitis, inability to pass gas or stool with vomiting, or abdominal pain during pregnancy. Book a GP appointment for: pain lasting more than a few days, recurring pain, unexplained changes in bowel habits, unintentional weight loss, or frequent heartburn. When in doubt, call Healthdirect on 1800 022 222 (free, 24/7) for advice from a registered nurse.