The sudden change from positive to negative for H. pylori may be due to effective control of one’s symptoms of infection, or it may be related to an error in the test results.
If the H. pylori test result changes from positive to negative, and if you take your medication regularly as prescribed by your doctor, the first thing you need to consider is the possibility that the symptoms of your infection have been effectively controlled. With effective medication, the number of H. pylori bacteria in the body will be effectively suppressed, and the test result will be negative.
However, if a patient’s test result suddenly changes from positive to negative without any treatment program being imposed, it is generally considered that there is an error in the testing method. H. pylori detection methods are based on breath test or endoscopy. Errors may occur during the breath test if the test is performed incorrectly or if the medication is taken incorrectly. A review is generally recommended for this result.
After a significant change in the H. pylori test result, it should be reviewed to determine the cause.