How are Helicobacter and fertility related?

The relationship between Helicobacter pylori (H. pylori) and fertility is debated in the scientific literature. Some studies suggest that H. pylori infection may impair both female and male fertility through chronic inflammation, immune cross-reactivity, or effects on sperm quality and implantation. However, the evidence is largely mechanistic or based on small observational studies; large randomized controlled trials are lacking. Many associations may reflect general inflammatory processes rather than a specific H. pylori effect. A direct causal link has not been established. MyBody-X does not offer a specific H. pylori test for fertility assessment; a positive H. pylori result (e.g., via stool antigen test) requires medical follow-up but does not replace a full fertility workup. Caution: eradication therapy may be indicated for other reasons, but its benefit for fertility alone is uncertain. Overall, the evidence level is 'mixed' – suggestive but insufficient for clinical recommendations.