What is h. pylori infection?

H. Pylori Infection

H. pylori bacterial infection: Overview

Your test shows the presence of Helicobacter pylori ( H. pylori), a kind of bacterium that lives in the lining of the stomach. Many people have H. pylori in their stomachs and do not develop problems. But sometimes H. pylori causes an upset stomach or a sore (ulcer) in the stomach lining. Most stomach ulcers are caused by H. pylori. Symptoms of an ulcer include gnawing or burning pain in the belly that can last minutes or hours. Eating food or taking antacids helps relieve the pain, but the symptoms may come back after a while. Antibiotic medicine can cure an H. pylori infection.

Helicobacter pylori bacteria

Helicobacter pylori is a type of bacteria that is a major cause of stomach (gastric) and upper small intestine (duodenal) ulcers. Infection with H. pylori may also increase the risk of stomach cancer.

H. pylori bacteria can cause ulcers by growing in the lining of the stomach, producing inflammation and causing the stomach and intestinal lining to be more easily damaged by stomach acid. But most people infected with H. pylori do not develop ulcers.

H. pylori bacteria can be eliminated by taking certain antibiotics that are specifically directed at this bacteria.

What problems can Helicobacter pylori cause?

Helicobacter pylori can cause ulcers by growing in the lining of the stomach. These bacteria produce inflammation and cause the stomach and the lining of the intestines to be more easily damaged by stomach acid. But most people infected with H. pylori don't get ulcers.

Another factor—one that can't always be identified—may be needed to cause an ulcer to form. These things may include:

  • The use of certain medicines. Examples are aspirin and other nonsteroidal anti-inflammatory drugs (NSAIDs).
  • Excessive alcohol use.
  • Other illnesses.

What are the symptoms of an H. pylori bacterial infection?

Most people don't have any symptoms. But sometimes an H. pylori infection causes an upset stomach or a stomach sore (ulcer). Symptoms of an ulcer include gnawing or burning pain in the belly that can last for hours. Taking antacids or eating helps relieve the pain, but the symptoms may come back.

How are Helicobacter pylori bacteria treated?

You can get rid of Helicobacter pylori bacteria by taking certain antibiotics that are specifically directed at this bacteria.

People who had a peptic ulcer and are infected with H. pylori need treatment to cure the infection. This will lower their risk of getting another peptic ulcer. Treatment with a combination of medicines works very well to cure an H. pylori infection. Sometimes H. pylori bacteria are resistant to certain antibiotics. This can keep the medicine from killing the bacteria.

Some people who take medicine to treat the H. pylori infection may need a follow-up test to make sure that the infection is cured.

H. Pylori Gastritis as Seen During Endoscopy

H. pylori gastritis seen through an endoscope

Gastritis is inflammation or irritation of the stomach lining. It can be caused by some medicines (such as aspirin or other anti-inflammatory medicines), overuse of alcohol, stomach acid, or bacterial infection.

An infection with the bacteria Helicobacter pylori (H. pylori) can cause gastritis. H. pylori is also the bacteria that causes ulcers.

One way to test for H. pylori is to take a tissue sample from the stomach. The doctor uses a thin, flexible, lighted viewing instrument (endoscope) to look down your throat and into your stomach. Looking through the endoscope, your doctor may also see irritation or inflammation in the lining of your stomach. This irritation is gastritis. And a tissue sample will tell the doctor if the cause is H. pylori.

How can you care for yourself when you have an H. pylori bacterial infection?

  • Take your antibiotics as directed. Do not stop taking them just because you feel better. You need to take the full course of antibiotics.
  • If your doctor prescribes other medicine, take it exactly as prescribed. Call your doctor if you think you are having a problem with your medicine. You will get more details on the specific medicine your doctor prescribes.
  • Eat smaller meals more often, instead of three larger meals a day.
  • Avoid eating foods that bother you. And avoid things that can irritate your stomach lining, such as black pepper or items with caffeine (soda, tea, coffee, and chocolate).
  • Avoid eating several hours before going bed.
  • Do not smoke. Smoking slows the healing of your ulcer and can make an ulcer come back. If you need help quitting, talk to your doctor about stop-smoking programs and medicines. These can increase your chances of quitting for good.
  • Limit how much alcohol you drink. Alcohol can slow healing of an ulcer and can make your symptoms worse.
  • Avoid aspirin, ibuprofen, or other anti-inflammatory medicines, because they can irritate the stomach. If you need pain medicine, try acetaminophen (Tylenol).

What is Helicobacter pylori bacteria?

Helicobacter pylori is a type of bacteria that is a major cause of stomach (gastric) and upper small intestine (duodenal) ulcers. Infection with H. pylori may also increase the risk of stomach cancer.

H. pylori bacterial infection: When to call

Call 911 anytime you think you may need emergency care. For example, call if:

  • You vomit blood or what looks like coffee grounds.
  • Your stools are maroon or very bloody.

Call your doctor now or seek immediate medical care if:

  • You have new or worse belly pain.
  • You are vomiting.
  • Your stools are black and look like tar, or they have streaks of blood.

Watch closely for changes in your health, and be sure to contact your doctor if:

  • You do not get better as expected.

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