When is Helicobacter Basis actually useful?

Helicobacter pylori testing is clinically useful in specific scenarios: patients with dyspepsia, peptic ulcer disease, or a family history of gastric cancer. Eradication therapy reduces ulcer recurrence and lowers gastric cancer risk. Testing is also indicated after early gastric cancer resection. However, routine screening in asymptomatic individuals without risk factors is not recommended due to high prevalence and potential for antibiotic overuse, which promotes resistance. Direct-to-consumer stool antigen tests can be helpful if symptoms are present, but they do not replace a physician's evaluation. False positives occur, and confirmatory testing (e.g., urea breath test, endoscopy with biopsy) is often required. Evidence for benefit in asymptomatic populations is weak. Caveat: DNA tests for H. pylori susceptibility are not clinically validated; only direct detection of the bacterium is actionable.