Almost everyone has experienced acidity — that burning sensation after a heavy meal. But when the burning becomes a regular occurrence, disrupts your sleep, or refuses to go away despite antacids, it is no longer just acidity. It may be GERD — and the difference matters more than most people realise.
Acidity vs GERD: What’s the Difference?
Acidity (acid dyspepsia) is a symptom — a transient episode of excess stomach acid causing heartburn or discomfort. It is triggered by specific meals, stress, or lifestyle choices and typically resolves with an antacid within minutes to hours.
GERD (Gastro-Oesophageal Reflux Disease) is a chronic medical condition where stomach acid repeatedly flows back into the oesophagus, causing persistent symptoms and, over time, structural damage to the oesophageal lining.
The key distinction: GERD is not caused by too much acid — it is caused by a weak or dysfunctional lower oesophageal sphincter (LOS), the muscular valve that separates the stomach from the oesophagus. When this valve doesn’t close properly, acid escapes upward regardless of how much acid the stomach actually produces.
How Common Is GERD in India?
GERD affects approximately 7–18% of the Indian population, with urban prevalence significantly higher due to dietary habits, sedentary lifestyles, and rising obesity rates. It is one of the most common reasons patients visit a gastroenterologist — and one of the most undertreated, largely because patients self-medicate with antacids for years without addressing the underlying problem.
Symptoms You Should Not Ignore
Typical GERD Symptoms
- Heartburn: Burning sensation in the chest, especially after meals or when lying down
- Regurgitation: Sour or bitter fluid rising into the throat or mouth
- Bloating and belching
- Nausea after meals
- Difficulty swallowing (dysphagia) — a warning sign that needs urgent investigation
Atypical (Extra-Oesophageal) Symptoms
GERD does not always present with heartburn. Many patients are unaware they have GERD because their symptoms point elsewhere:
- Chronic cough — especially at night
- Hoarseness or voice changes in the morning
- Frequent throat clearing
- Dental erosion (acid damaging tooth enamel)
- Recurrent chest pain that mimics a cardiac event
- Worsening asthma or recurrent respiratory infections
Why Prolonged, Untreated GERD Is Dangerous
Self-treating with antacids masks the symptoms but does nothing to prevent the acid from repeatedly damaging the oesophageal lining. Over years, this leads to:
- Oesophagitis: Inflammation and erosions of the oesophageal lining
- Oesophageal stricture: Scarring that narrows the food pipe, causing difficulty swallowing
- Barrett’s Oesophagus: The normal oesophageal lining transforms into an intestinal-type lining — a precancerous condition affecting approximately 10% of long-term GERD patients
- Oesophageal adenocarcinoma: A cancer whose incidence is rising globally, and which is strongly linked to Barrett’s and chronic GERD
This is why GERD that has persisted for more than 5 years, or GERD with alarming symptoms (difficulty swallowing, weight loss, vomiting blood), requires an upper GI endoscopy (gastroscopy) — not just a prescription for antacids.
Diagnosis: What the Investigation Involves
- Upper GI Endoscopy (Gastroscopy): Directly visualises the oesophagus, stomach, and duodenum. Identifies erosions, Barrett’s changes, strictures, and hiatus hernia.
- 24-hour pH Impedance Study: Measures acid exposure and reflux episodes over a full day. The gold standard for confirming GERD diagnosis, particularly in atypical presentations.
- Oesophageal Manometry: Assesses the pressure and function of the lower oesophageal sphincter and oesophageal motility — important before any surgical decision.
Treatment: More Than Just Antacids
Step 1 — Lifestyle Modifications (Non-Negotiable)
- Eat smaller, more frequent meals — avoid large meals that distend the stomach
- Do not lie down for at least 2–3 hours after eating
- Elevate the head end of the bed by 15–20 cm
- Avoid known triggers: spicy food, citrus, coffee, alcohol, chocolate, carbonated drinks, and fatty meals
- Lose weight — even a 5% reduction in body weight significantly reduces reflux episodes
- Quit smoking — nicotine weakens the lower oesophageal sphincter
- Wear loose clothing — tight waistbands increase intra-abdominal pressure
Step 2 — Medical Treatment
Proton Pump Inhibitors (PPIs) such as omeprazole, pantoprazole, and rabeprazole reduce acid production and allow the oesophagus to heal. They should be prescribed based on the severity and duration of symptoms — not taken indefinitely without review. Long-term PPI use carries its own risks, including B12 deficiency, hypomagnesaemia, and increased susceptibility to certain gut infections.
Step 3 — Endoscopic and Surgical Options
For patients who do not respond adequately to medication, or who wish to avoid lifelong drug therapy, two options exist:
- Laparoscopic Nissen Fundoplication: A surgical wrap of the fundus of the stomach around the lower oesophagus to strengthen the valve — highly effective in appropriate candidates.
- Transoral Incisionless Fundoplication (TIF): An endoscopic, incision-free procedure that reconstructs the anti-reflux valve from inside the stomach.
When You Must See a Specialist Without Delay
- Symptoms have persisted for more than 3–6 months despite antacids
- You are waking up at night due to acid symptoms
- You have difficulty or pain on swallowing
- You have unexplained weight loss
- You are vomiting or have seen blood in your vomit
- You are over 40 with new-onset heartburn (Barrett’s screening is warranted)
GERD is a manageable condition — but only if managed correctly. Treating it as simple acidity and relying on over-the-counter antacids for years is not management. It is a missed opportunity to prevent serious, avoidable complications.
Dr. Tummalapalli S A Satya Maharshi is a Consultant Medical Gastroenterologist at AIG Hospitals, Hyderabad, specialising in upper GI disorders, advanced endoscopy, and oesophageal disease. Book a consultation at +91 9963886339.