Gastritis: Symptoms, Causes, Treatment, and Prevention

Comprehensive guide to gastritis, featuring symptoms, diagnosis, treatments, and expert advice for management and prevention

By Sneha Tete, Integrated MA, Certified Relationship Coach
Created on

What Is Gastritis?

Gastritis is a medical term that describes inflammation, irritation, or erosion of the stomach lining. This condition can develop suddenly (acute gastritis) or gradually and become long-lasting (chronic gastritis). While its a common ailment, it can have serious consequences if left untreated.

How Common Is Gastritis?

In the United States, about 8 out of every 1,000 individuals are affected by gastritis. Worldwide, chronic gastritis is especially prevalent, with up to half of the population experiencing it, often due to Helicobacter pylori (H. pylori) infection.

Types of Gastritis

Gastritis can be classified based on its cause and the effect it has on the stomach lining:

  • Acute Gastritis: Occurs suddenly and may be triggered by infections, medications, alcohol, or stress.
  • Chronic Gastritis: Develops over time, often linked to persistent H. pylori infection, autoimmune conditions, or long-term use of NSAIDs.
  • Erosive Gastritis: Leads to ulcers or injuries in the stomach lining.
  • Non-erosive Gastritis: Causes irritation but no ulcers. A subtype called atrophic gastritis thins the stomach lining.
  • Other Types: This includes alcohol-induced, drug-induced, stress-induced, and autoimmune gastritis.

Causes and Risk Factors

Gastritis occurs when the stomachs protective lining is weakened or damaged. Causes include:

  • Infections: Most commonly, H. pylori bacteria; other infections like viruses (e.g., norovirus, rotavirus), parasites, and opportunistic infections in people with weakened immunity (e.g., HIV/AIDS) can also cause gastritis.
  • Medications: Long-term use of NSAIDs (aspirin, ibuprofen, naproxen) and certain prescription medications.
  • Lifestyle Factors: Excessive alcohol consumption, tobacco use, cocaine use, and stress from injury, surgery, or serious illness.
  • Autoimmune Disorders: The immune system mistakenly attacks the stomach lining, as in autoimmune gastritis.
  • Bile Reflux: Backflow of bile into the stomach from the small intestine.
  • Other Conditions: Crohns disease, celiac disease, and sarcoidosis can lead to gastritis.
  • Aging: The stomach lining tends to thin with age, increasing risk.

Gastritis Symptoms

Symptoms vary widely—some people have no symptoms, while others experience significant discomfort. Common signs include:

  • Indigestion: A burning or gnawing sensation in the upper abdomen, often between meals or at night.
  • Nausea and Vomiting: Sometimes with blood or material resembling coffee grounds.
  • Bloating: Feeling full or swollen in the abdomen.
  • Stomach Pain: Discomfort or pain in the upper belly area.
  • Hiccups and Loss of Appetite: Frequent hiccups and reduced desire to eat.
  • Black, Tarry Stools or Vomiting Blood: Indicates possible internal bleeding, requiring prompt medical attention.

Diagnosing Gastritis

To diagnose gastritis, a healthcare provider will review your medical history, perform a physical exam, and may recommend several tests, such as:

  • Upper GI Series (Barium Swallow): An X-ray of the upper digestive tract after swallowing barium to highlight abnormalities.
  • Upper Endoscopy: A flexible tube with a camera is passed through the mouth into the stomach to directly view the lining and possibly take a tissue sample (biopsy).
  • Blood Tests: To check for anemia (low red blood cells), H. pylori infection, and pernicious anemia.
  • Stool Tests: To detect blood in the stool and H. pylori antigens.
  • Urea Breath Test: For detecting H. pylori by measuring carbon dioxide in the breath after swallowing urea.

Functional Medicine and Advanced Testing

Functional medicine approaches may include additional testing to uncover underlying causes:

  • H. pylori Testing: Stool antigen, breath, or endoscopy-based tests to confirm infection.
  • Food Sensitivity & Allergy Testing: Identifying foods that may exacerbate symptoms to tailor dietary interventions.
  • Stress Testing: Salivary cortisol levels to assess chronic stress as a contributing factor.
  • Micronutrient Testing: To screen for deficiencies (e.g., iron, B12, calcium, magnesium, zinc) caused by poor absorption in chronic gastritis.

Treatment Options

Treatment depends on the underlying cause and severity of gastritis. Approaches include:

Conventional Medical Therapies

  • Antibiotics: For H. pylori infections, typically using a combination of antibiotics (triple or quadruple therapy).
  • Acid-Reducing Medications: Proton pump inhibitors (PPIs) and H2 blockers to decrease stomach acid and promote healing.
  • Antacids: For symptom relief by neutralizing stomach acid.

Removing Irritants

  • Medication Review: Discontinuing NSAIDs, alcohol, and tobacco, which can worsen gastritis.
  • Dietary Adjustments: Avoiding spicy, fried, acidic, and processed foods, as well as coffee and processed sugars that may irritate the stomach.

Supplemental Therapies

  • Mastic Gum, Bismuth, and Berberine: Natural agents with antimicrobial effects, sometimes used as alternatives or adjuncts to antibiotics.
  • Nutrient Supplementation: Addressing deficiencies in iron, vitamin B12, and other micronutrients.

Lifestyle and Stress Management

  • Stress Reduction: Practices like meditation, tai chi, and regular relaxation can support digestive health.
  • Elimination Diet: Temporarily removing suspected food triggers, then gradually reintroducing them to identify sensitivities.

Prevention Strategies

You can reduce your risk of gastritis by:

  • Limiting Alcohol and Tobacco Use
  • Using NSAIDs Sparingly and Under Medical Supervision
  • Eating a Balanced Diet (avoiding known irritants)
  • Managing Stress through relaxation techniques
  • Practicing Good Hygiene to reduce H. pylori risk

Complications of Untreated Gastritis

If not managed, gastritis can lead to:

  • Ulcers: Open sores that bleed and cause pain
  • Anemia: From chronic blood loss
  • Gastric Cancer: Rarely, long-term damage increases cancer risk

When to See a Doctor

Seek medical attention if you experience:

  • Persistent abdominal pain or indigestion
  • Vomiting blood or black, tarry stools
  • Unintended weight loss
  • Symptoms that do not improve with home care

Frequently Asked Questions (FAQs)

Q: What is the main cause of gastritis?

A: The most common causes are H. pylori infection, long-term NSAID use, excessive alcohol, and stress.

Q: Can gastritis turn into stomach cancer?

A: Chronic gastritis, especially from H. pylori or autoimmune causes, can increase the risk of stomach cancer over time if untreated.

Q: How is gastritis diagnosed?

A: Diagnosis may involve medical history, physical exam, endoscopy, blood tests, stool tests, and breath tests for H. pylori.

Q: What foods should be avoided with gastritis?

A: Spicy, fried, acidic, and processed foods, as well as coffee and alcohol, are common irritants and should be avoided.

Q: Can stress cause gastritis?

A: Yes, severe or chronic stress can contribute to gastritis by affecting the stomachs protective barrier.

Q: Is gastritis contagious?

A: Gastritis itself is not contagious, but H. pylori, a frequent cause, can be spread through contaminated food, water, or close contact.

Table: Common Tests for Gastritis

Test NamePurposeMethod
Upper EndoscopyDirect visualization and biopsy of stomach liningEndoscope through mouth
Stool Antigen TestDetect H. pylori bacteriaStool sample
Blood TestCheck for anemia and infectionBlood sample
Urea Breath TestIdentify H. pylori infectionBreath sample after drinking urea
Food Sensitivity TestingIdentify dietary triggersBlood sample (IgE/IgG)

Gastritis is a treatable condition, especially when diagnosed early and managed with appropriate medical care and lifestyle changes. If you suspect you have gastritis, consult a healthcare provider for a proper evaluation and personalized treatment plan.

Sneha Tete
Sneha TeteBeauty & Lifestyle Writer
Sneha is a relationships and lifestyle writer with a strong foundation in applied linguistics and certified training in relationship coaching. She brings over five years of writing experience to thebridalbox, crafting thoughtful, research-driven content that empowers readers to build healthier relationships, boost emotional well-being, and embrace holistic living.

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