Anaheim

(657) 900-4536

Santa Ana

(657) 900-4536

Westminster

(657) 900-4536

Understanding H. pylori: Causes, Symptoms & Treatment

Helicobacter pylori, commonly known as H. pylori, is one of the most widespread bacterial infections in the world. It affects the stomach and is a major cause of ulcers, chronic gastritis, and in some cases, stomach cancer. The good news? H. pylori can be diagnosed and treated effectively — and our GI clinic specializes in helping patients manage and eliminate this infection.


What Is H. pylori?

H. pylori is a spiral-shaped bacterium that lives in the stomach lining. Once it infects the stomach, it can cause inflammation and damage over time. Many people don’t realize they have H. pylori because symptoms can be mild, vague, or even absent.

This infection is very common worldwide and spreads most often through saliva, food, water, or close contact within households.


How Common Is H. pylori?

  • H. pylori infects over 50% of the world’s population.
  • In the U.S., an estimated 30–40% of adults carry the bacteria.
  • It is more common in households with close contact, crowded living conditions, or a history of the infection among family members.

Because of how common the infection is — and how long it can remain undetected — GI evaluation and proper testing are essential.


Symptoms of H. pylori Infection

Many people with H. pylori don’t have noticeable symptoms. When symptoms do occur, they may include:

  • Burning or aching abdominal pain
  • Bloating or early fullness
  • Nausea or vomiting
  • Loss of appetite
  • Unexplained weight loss
  • Bad breath
  • Dark stools or signs of bleeding (from ulcers)

If left untreated, H. pylori can lead to peptic ulcers, chronic gastritis, and increase the long-term risk of gastric cancer.


How Is H. pylori Diagnosed?

Our GI clinic uses several accurate, non-invasive and minimally invasive tests, including:

  1. Urea Breath Test: highly accurate test that detects active infection
  2. Stool Antigen Test: used to diagnose infection and confirm eradication after treatment
  3. Endoscopy (EGD) with Biopsy: recommend when symptoms are severe, long-standing, or include ulcers, bleeding, or anemia

How Is H. pylori Treated?

The standard treatment for H. pylori is combination therapy, usually lasting 10–14 days. Treatment may include:

  • Multiple antibiotics (to prevent resistance)
  • Proton pump inhibitor (PPI) medication to reduce acid
  • Sometimes bismuth, depending on the regimen

Completing the full treatment course is essential, even if symptoms improve early.

After treatment, we perform a test of cure — usually a breath or stool test — at least 4 weeks later to ensure the infection is completely gone.


Why Treating H. pylori Matters

Treating H. pylori can:

  • Heal ulcers
  • Reduce the risk of ulcer bleeding
  • Improve chronic gastritis
  • Lower the risk of stomach cancer
  • Relieve persistent digestive symptoms
  • Improve overall gut health

If you’ve been told you have gastritis, acid reflux, peptic ulcers, or ongoing upper abdominal discomfort, testing for H. pylori may be recommended.


How to Prevent H. pylori Infection

While not all H. pylori infections are preventable, you can lower your risk by:

  • Washing hands regularly
  • Drinking clean, filtered water
  • Avoiding food or water from unsafe sources
  • Eating properly prepared meals
  • Avoiding sharing utensils in high-risk settings

When You Should See a GI Specialist

You should seek evaluation if you experience:

  • Upper abdominal pain that doesn’t go away
  • Nausea or vomiting
  • Black or tarry stools
  • Long-term use of NSAIDs
  • History of ulcers
  • Persistent bloating
  • Family history of stomach cancer
  • Previous positive H. pylori tests without treatment follow-up

Our clinic provides comprehensive testing, treatment, and follow-up care to ensure the infection is fully eradicated.


Take Control of Your Digestive Health

H. pylori is common — but highly treatable. If you’re experiencing upper abdominal discomfort, gastritis, reflux symptoms, or have been diagnosed with ulcers, our team can help you get the answers and treatment you need.

👉 Contact our GI clinic today to schedule an evaluation or H. pylori testing.

Helicobacter pylori, commonly known as H. pylori, is one of the most widespread bacterial infections in the world. It affects the stomach and is a major cause of ulcers, chronic gastritis, and in some cases, stomach cancer. The good news? H. pylori can be diagnosed and treated effectively — and our GI clinic specializes in helping patients manage and eliminate this infection.


What Is H. pylori?

H. pylori is a spiral-shaped bacterium that lives in the stomach lining. Once it infects the stomach, it can cause inflammation and damage over time. Many people don’t realize they have H. pylori because symptoms can be mild, vague, or even absent.

This infection is very common worldwide and spreads most often through saliva, food, water, or close contact within households.


How Common Is H. pylori?

  • H. pylori infects over 50% of the world’s population.
  • In the U.S., an estimated 30–40% of adults carry the bacteria.
  • It is more common in households with close contact, crowded living conditions, or a history of the infection among family members.

Because of how common the infection is — and how long it can remain undetected — GI evaluation and proper testing are essential.


Symptoms of H. pylori Infection

Many people with H. pylori don’t have noticeable symptoms. When symptoms do occur, they may include:

  • Burning or aching abdominal pain
  • Bloating or early fullness
  • Nausea or vomiting
  • Loss of appetite
  • Unexplained weight loss
  • Bad breath
  • Dark stools or signs of bleeding (from ulcers)

If left untreated, H. pylori can lead to peptic ulcers, chronic gastritis, and increase the long-term risk of gastric cancer.


How Is H. pylori Diagnosed?

Our GI clinic uses several accurate, non-invasive and minimally invasive tests, including:

  1. Urea Breath Test: highly accurate test that detects active infection
  2. Stool Antigen Test: used to diagnose infection and confirm eradication after treatment
  3. Endoscopy (EGD) with Biopsy: recommend when symptoms are severe, long-standing, or include ulcers, bleeding, or anemia

How Is H. pylori Treated?

The standard treatment for H. pylori is combination therapy, usually lasting 10–14 days. Treatment may include:

  • Multiple antibiotics (to prevent resistance)
  • Proton pump inhibitor (PPI) medication to reduce acid
  • Sometimes bismuth, depending on the regimen

Completing the full treatment course is essential, even if symptoms improve early.

After treatment, we perform a test of cure — usually a breath or stool test — at least 4 weeks later to ensure the infection is completely gone.


Why Treating H. pylori Matters

Treating H. pylori can:

  • Heal ulcers
  • Reduce the risk of ulcer bleeding
  • Improve chronic gastritis
  • Lower the risk of stomach cancer
  • Relieve persistent digestive symptoms
  • Improve overall gut health

If you’ve been told you have gastritis, acid reflux, peptic ulcers, or ongoing upper abdominal discomfort, testing for H. pylori may be recommended.


How to Prevent H. pylori Infection

While not all H. pylori infections are preventable, you can lower your risk by:

  • Washing hands regularly
  • Drinking clean, filtered water
  • Avoiding food or water from unsafe sources
  • Eating properly prepared meals
  • Avoiding sharing utensils in high-risk settings

When You Should See a GI Specialist

You should seek evaluation if you experience:

  • Upper abdominal pain that doesn’t go away
  • Nausea or vomiting
  • Black or tarry stools
  • Long-term use of NSAIDs
  • History of ulcers
  • Persistent bloating
  • Family history of stomach cancer
  • Previous positive H. pylori tests without treatment follow-up

Our clinic provides comprehensive testing, treatment, and follow-up care to ensure the infection is fully eradicated.


Take Control of Your Digestive Health

H. pylori is common — but highly treatable. If you’re experiencing upper abdominal discomfort, gastritis, reflux symptoms, or have been diagnosed with ulcers, our team can help you get the answers and treatment you need.

👉 Contact our GI clinic today to schedule an evaluation or H. pylori testing.