
Gastritis causing pain and discomfort
Gastritis — inflammation of the stomach lining — is among the most commonly diagnosed digestive conditions in India. It's also among the most loosely used terms: in clinical practice, the word "gastritis" sometimes covers everything from genuine mucosal inflammation to functional dyspepsia to non-ulcer stomach pain, which makes it worth understanding precisely what it actually means, how it's distinguished from peptic ulcer disease, and what treatment is actually appropriate.
The stomach is lined with a specialised mucosal layer that protects it from its own hydrochloric acid. When this layer becomes inflamed — from infection, chemical damage, autoimmune attack, or other causes — the result is gastritis. The inflammation can be:
Acute gastritis: sudden onset, typically from a specific trigger. Often resolves with removal of the cause.
Chronic gastritis: persistent, low-grade inflammation that may have been present for months or years without obvious symptoms. Often identified incidentally on endoscopy done for another reason.
Erosive gastritis: inflammation severe enough to erode the mucosal surface, leaving raw areas susceptible to further damage. Can progress to ulceration.
Non-erosive gastritis: inflammation without erosion — the mucosa is irritated but intact.
Gastritis symptoms vary from absent (many people with histologically proven gastritis have no symptoms at all) to quite significant. When symptoms are present:
Upper abdominal discomfort or pain: a dull ache, burning, or gnawing sensation in the epigastric region (central upper abdomen, between the breastbone and navel). The character is similar to peptic ulcer pain but typically less severe and less clearly related to meal timing.
Nausea: very common; may be the dominant symptom in some patients, particularly with acute gastritis from alcohol or viral illness.
Vomiting: less constant than with peptic ulcer but present in more severe or acute cases.
Bloating and fullness after eating: a sense of early satiety — feeling full after only a small amount of food. Common in chronic gastritis.
Belching: excess gas and bloating produce frequent belching.
Loss of appetite: discomfort associated with eating reduces appetite over time.
Hiccups: occasionally, particularly with irritation of the diaphragm from severe gastric inflammation.
Dark or black stools (melaena): if gastritis has progressed to erosion or bleeding. Blood in stool that has been digested by stomach acid appears black and tarry. This is a red flag requiring urgent medical attention.
Vomiting blood: bright red blood or coffee-ground material. Also a red flag emergency.
Helicobacter pylori is a gram-negative bacterium that lives under the mucus layer of the stomach and is remarkably well-adapted to the acidic environment. It infects approximately 40–70% of Indian adults. In most infected people, the infection causes mild chronic gastritis without significant symptoms. In some, it progresses to peptic ulcer, gastric atrophy, and — with long-standing untreated infection — carries an increased risk of gastric cancer.
H. pylori gastritis is confirmed by biopsy on endoscopy, urea breath test, or stool antigen test. Treatment is H. pylori eradication with triple therapy (two antibiotics + a proton pump inhibitor for 14 days).
NSAIDs inhibit the enzyme COX-1, which is responsible for prostaglandin production in the stomach. Prostaglandins stimulate the production of protective mucus and bicarbonate and maintain mucosal blood flow. Without them, the stomach lining becomes vulnerable to its own acid.
NSAID gastritis develops with even short-term use in susceptible people, and is a significant clinical problem in India where NSAIDs are widely self-prescribed for headaches, back pain, joint pain, and fever. Taking NSAIDs with food reduces (but doesn't eliminate) gastric irritation; a proton pump inhibitor taken alongside an NSAID substantially reduces the risk.
Alcohol directly damages the gastric mucosa by dissolving mucosal lipids and reducing the protective mucus layer. Even moderate amounts can cause acute gastric irritation; heavy drinking causes erosive gastritis.
Many viral gastrointestinal illnesses (norovirus, adenovirus, cytomegalovirus in immunocompromised patients) cause acute gastric inflammation — what is commonly called "stomach flu." Usually self-limiting within days.
Rare but important: the immune system attacks the parietal cells of the stomach, which produce both hydrochloric acid and intrinsic factor (essential for vitamin B12 absorption). Results in:
Autoimmune gastritis is associated with other autoimmune conditions (thyroid disease, type 1 diabetes, vitiligo). Diagnosed by blood test for anti-parietal cell and anti-intrinsic factor antibodies.
When bile from the small intestine refluxes back into the stomach (can happen with a dysfunctional pyloric valve, or after certain stomach surgeries), it causes chemical gastritis. Produces upper abdominal pain, nausea, and bilious vomiting (greenish vomit).
In critically ill patients — major burns, severe trauma, mechanical ventilation — the gastric mucosal barrier breaks down under physiological stress, causing erosive gastritis and stress ulcers. This is distinct from the emotional stress that non-critically ill people experience (which does NOT directly cause gastritis, though it may worsen symptoms).
Less common: radiation therapy to the abdomen, cocaine use, certain herbal and traditional medicines containing NSAIDs or irritant compounds.
Gastritis (inflammation without full mucosal breach) and peptic ulcer (full-thickness mucosal defect) exist on a continuum. The key clinical difference:
The distinction is made definitively by endoscopy — not clinically.
Clinical diagnosis: in mild, typical presentations, a doctor may treat presumptively based on symptoms without immediate endoscopy.
Upper GI endoscopy: the definitive investigation. Visualises the stomach lining directly, takes biopsies for H. pylori and histological examination (cell type assessment), and rules out peptic ulcer, erosions, and cancer. Recommended when:
H. pylori testing: urea breath test, stool antigen test, or blood serology. Important because treatment of H. pylori gastritis is specifically eradication of the bacterium.
Blood tests: full blood count (anaemia from bleeding or B12 deficiency), B12 levels (if autoimmune gastritis suspected), parietal cell and intrinsic factor antibodies.
The most important step. Stop the NSAID if possible (or add a PPI; switch to a COX-2 selective NSAID). Eliminate alcohol. Eradicate H. pylori if detected.
Proton pump inhibitors (omeprazole, pantoprazole, rabeprazole) suppress acid production, reducing the acid contact with the inflamed mucosa and allowing healing. Used for 4–8 weeks typically.
H2 blockers (famotidine) are less potent but appropriate for milder symptoms.
Antacids provide rapid but short-lived symptomatic relief — appropriate for occasional use.
Not curative, but reduce symptom burden:
Standard triple therapy: omeprazole 20mg twice daily + amoxicillin 1g twice daily + clarithromycin 500mg twice daily for 14 days. Alternative regimens used when clarithromycin resistance is high in a region. Always confirm eradication with repeat breath test 4 weeks after completing antibiotics.
No treatment reverses the underlying autoimmune process. Management focuses on monitoring and supplementing B12 (since intrinsic factor is absent, oral B12 is poorly absorbed — intramuscular B12 injections are typically required). Regular endoscopic surveillance for gastric cancer risk.
Long-standing chronic H. pylori gastritis, if untreated, can progress through a recognised sequence:
This progression takes decades and occurs in a minority of H. pylori-infected people. It's why H. pylori eradication is recommended whenever the infection is detected — not just when symptoms are present.
At Prakash Hospital Noida, our physicians and gastroenterologists evaluate gastritis with H. pylori testing, upper GI endoscopy where indicated, and appropriate treatment including H. pylori eradication therapy, acid suppression, and dietary guidance.
Whether you live in Sector 18, Sector 62, Greater Noida West, or anywhere in the NCR, Prakash Hospital Noida is a trusted name for gastritis, digestive health, and gastroenterology in Noida.
To book a consultation, call the number.
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