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Index/Topics/Condom Use

Condom Use

Using condoms to reduce HIV transmission risk

Fact-Checks

4 results
Jan 18, 2026
Most Viewed

How do frequency and specific sexual practices (e.g., fisting, chemsex) quantitatively change FI risk in longitudinal studies?

Longitudinal and cohort research consistently show that both the frequency of high‑risk sexual practices and participation in chemsex are associated with substantially higher odds of acquiring bloodbo...

Jan 20, 2026

What medical advice exists for safe anal penetration sizes?

Medical guidance does not prescribe a single "safe" anal penetration size; instead clinicians and sexual-health educators emphasize progressive, individualized approaches — start very small, use abund...

Jan 5, 2026

How does consistent PrEP use change the per-act HIV transmission risk for receptive anal sex?

Consistent use of oral or injectable PrEP cuts the per-act risk of acquiring HIV from receptive anal sex from roughly 138 infections per 10,000 exposures (about 1.38% per act) to on the order of 1 per...

Jan 5, 2026

What is the per-act HIV transmission risk for receptive versus insertive anal sex?

Per-act estimates used by major public-health bodies place the risk of HIV transmission from a single act of condomless anal sex at roughly 1.38% (138 per 10,000) for the receptive partner and about 0...

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