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How is the testing of feces for determination of Helicobacter

Хеликобактер пилори Some signs of diseases of the stomach, manifested in humans, can be the cause of the suspicion about the presence of the body of Helicobacter pylori. This bacterium contributes to the development of diseases of the digestive system. To determine its presence, it is necessary to pass fecal tests or screening.

What is this bacterium?

This pathogenic bacterium was discovered in 1983. It was discovered in people who suffer diseases of the gastrointestinal tract. Flagella present in this microorganism, allow him to move quickly and go deep into the stomach wall. Most often infection is detected in the case where the analysis on an antigen in the stool or PCR.

Due to the fact that the bacterium has a protective sheath, corrosive substances in the digestive system does not have any effect on it. In the process of life organism secretes into the environment a lot of the toxins that contribute to the destruction of the gastric mucosa. Under the influence of other adverse conditions arise due to this:

  • inflammatory diseases;
  • ulcer of the stomach;
  • of a malignant tumor.

Helicobacter pylori enters the body in several ways:

  1. Fecal-oral. The bacterium penetrates in the use of infected food and water.
  2. Oral-oral. This way of infection with bacteria is associated with the hit in the mouth infected saliva. This occurs during kissing, or shared Cutlery with someone who is infected.
  3. Iatrogenic transmission involves the spread of bacteria through medical equipment during the examination of the gastrointestinal tract.

Causes of infectious diseases

The risk of infection by the bacterium Helicobacter pylori increases with age. If one family member has this microorganism, it is likely they are infected, and other relatives residing with him. The determination may occur using PCR (polymerase chain reaction).

The bacterium lives in the stomach due to the fact that it is related to its survival in the environment. For its functioning need constant power and a certain temperature. Otherwise, the bacterium dies within two weeks. Man is the main carrier, but Helicobacter pylori may be in the body of dogs, pigs and cats.

Острые боли в желудке It is to detect bacteria, most often when testing for antigen or PCR in the feces.

It can survive for long periods in the body and not to deliver any discomfort. But there are a few favorable conditions forthe emergence of disease due to this bacterium. These include:

  • a weak immune system;
  • failure to follow the diet;
  • consumption of harmful products;
  • frequent exposure to stomach alcohol.


Upon detection of symptoms of the presence of the bacterium Helicobacter pylori should be remembered that they are not the basis for diagnosis. This is because they may manifest in many diseases. To confirm the presence of H. pylori, you will need to be tested for antigen or PCR in the feces.

In almost all cases, when a person has bacteria present and the following pathology:

  • cholecystitis,
  • hepatitis,
  • pancreatitis.

The symptoms of Helicobacter pylori infection:

  • headaches that appear with no known cause;
  • heartburn;
  • belching;
  • bad breath;
  • disorders of the digestive system;

Methods of diagnosis

Анализ кала To determine the presence of bacteria, using different research methods. One of them is the detection of antigens in feces. This method is one of the main and allows to determine the presence of a microorganism without the need for endoscopy. Can also occur blood test that detects the presence of antibodies. Endoscopic examination allows us to consider the walls of the stomach and take tissue samples.

May be and respiratory test. For it takes people inside a substance and inhaling in the case of Helicobacter pylori is determined by the color change of the reagent. All of this is fixed with a special device. But most often used analysis for antigen or PCR in the feces.

The study of feces

Antigen Helicobacter pylori is one of the indicators of infection and is assigned when the complaints are talking about a peptic ulcer or other digestive pathologies. The study is assigned in the following cases:

  1. At the onset of symptoms that speak of peptic ulcer disease. These include pain in epitragini region, feeling of heaviness, nausea, and vomiting.
  2. When determining the effectiveness of treatment of diseases caused by Helicobacter pylori to predict the next relapse.
  3. When you need confirmation that the infection is no more.


In the result, talking about the infection with Helicobacter pylori, it is possible to speak about high risk of developing peptic ulcer disease, gastritis and cancer. If negative bacteria body there. But if in the second case, a person still shows signs of diseases of the gastrointestinal tract, is to be screened again after 2 weeks. If the treatment of the disease have already occurred in this casea positive result a week after the completion of the entire course you can talk about inefficiency. If after a month you then have the Helicobacter pylori is not found, then this indicates complete destruction of the causative agent.

Examination of feces in order to determine whether the antigen may be a gastroenterologist, internist, and pediatrician, surgeon, and infectious disease.

The study of genetic material in the stool

The method consists in determining the presence of genetic material of Helicobacter pylori in feces. The analysis is used by doctors to determine the causes of peptic ulcer disease, gastritis, as well as the effectiveness of therapeutic measures.

PCR-based diagnostics are characterized by high sensitivity and accuracy of the result. Analysis of antigen is one of the most effective ways of determining the presence in the body of the bacteria. In addition, the method and PCR physicians often use endoscope.