Gastritis: Causes, Symptoms, Diagnosis & Treatment

Gastritis is a condition in which the lining of the stomach becomes inflamed or irritated. It can develop suddenly (acute gastritis) or gradually over time (chronic gastritis). While many cases are mild and reversible, untreated gastritis can lead to ulcers, bleeding, or long-term stomach damage.

 What Is Gastritis?

The stomach lining normally produces acid and protective mucus to aid digestion.
In gastritis, this protective barrier is weakened, allowing acid to damage the stomach lining, leading to inflammation, pain, and discomfort.

 Common Causes of Gastritis

🔹 Infectious Causes

• H. pylori infection (most common worldwide)

• Viral or fungal infections (rare, usually in immunocompromised patients)

🔹 Lifestyle & Dietary Causes

• Excess alcohol consumption

• Spicy, oily, or highly acidic foods

• Irregular meals or prolonged fasting

• Excess caffeine (coffee, energy drinks)

• Smoking

🔹 Medication-Related

• Painkillers (NSAIDs like ibuprofen, aspirin)

• Steroids

• Certain antibiotics

• Long-term medication use without food

🔹 Medical Conditions

Condition

Effect

Autoimmune gastritis

Body attacks stomach lining

Severe stress

Burns, trauma, major surgery

Bile reflux

Irritation from bile entering stomach

Chronic liver or kidney disease

Increased gastric irritation

 Symptoms of Gastritis

Symptoms may vary from mild to severe.

Common Symptoms

• Burning or gnawing pain in upper abdomen

• Nausea or vomiting

• Loss of appetite

• Bloating or fullness after eating

• Indigestion

• Acid reflux or heartburn

 Warning Signs (Seek Urgent Care)

• Vomiting blood

• Black or tarry stools

• Severe abdominal pain

• Persistent vomiting

• Unexplained weight loss

 Types of Gastritis

Type

Description

1.Acute gastritis

Sudden inflammation, often due to food, alcohol, or drugs

2.Chronic gastritis

Long-term inflammation, commonly due to H. pylori

3.Erosive gastritis

Causes erosion and bleeding of stomach lining

4.Atrophic gastritis

Thinning of stomach lining (long-standing cases)

 Diagnosis

Gastritis is diagnosed based on symptoms and investigations.

Common Tests

• Upper GI endoscopy – direct visualization of stomach lining

• H. pylori testing (breath, stool, blood test)

• Blood tests (anemia, vitamin B12 levels)

• Stool test for occult blood

• Biopsy (during endoscopy if required)

medical Treatment & Management 

Treatment depends on the underlying cause.

1️⃣ Medications

Category

Purpose

1.Proton pump inhibitors (PPIs)

Reduce acid production

2.H2 blockers

Lower stomach acid

3.Antacids

Neutralize acid

4.Antibiotics

Eradicate H. pylori

5.Protective agents

Strengthen stomach lining

 Medications should be taken only as prescribed.

2️⃣ Diet & Lifestyle Changes

Recommended

Avoid

Small frequent meals

Spicy & fried foods

Warm, freshly cooked food

Alcohol

Oats, rice, bananas, curd

Coffee & fizzy drinks

Adequate hydration

Smoking

Early dinner

Late-night heavy meals

Additional tips:

• Eat slowly and chew well

• Avoid lying down immediately after meals

• Manage stress through yoga or meditation

 Complications if Untreated

• Peptic ulcer disease

• Gastrointestinal bleeding

• Anemia

• Vitamin B12 deficiency

• Increased risk of gastric cancer (chronic cases)

 Prevention

• Maintain regular eating habits

• Avoid unnecessary painkillers

• Limit alcohol and caffeine

• Treat H. pylori infection early

• Practice good food hygiene

• Manage stress effectively

 Summary

Gastritis is inflammation of the stomach lining caused by infections, medications, diet, alcohol, or stress. Most cases improve with proper medication, diet control, and lifestyle changes. Early treatment prevents ulcers and long-term complications.

 When to Consult a Doctor

• Persistent stomach pain
  
  

• Recurrent vomiting
  
  

• Blood in vomit or stools
  
  

• Symptoms lasting more than 1 or 2 weeks 

Disclaimer:

The information provided on this website is for educational and informational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified physician or other licensed healthcare provider with any questions you may have regarding a medical condition. Do not ignore or delay seeking medical advice because of information you read on this website. The use of any information provided here is solely at your own risk.