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Featured guide · Testing
At-home STI testing: how it works
What an at-home kit tests for, how to collect each sample, and what happens after you mail it back.
3 min read · Updated October 1, 2026
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- TestingAt-home STI testing: how it worksWhat an at-home kit tests for, how to collect each sample, and what happens after you mail it back.
3 min read · Updated October 1, 2026
1 in 5people in the U.S. had a sexually transmitted infection on any given day. (CDC, 2018 estimate)
- TestingHIV testing: what to knowWho should get tested, how often, which tests are available, and what happens after a result.
3 min read · Updated October 1, 2026
13–64Everyone in this age range should get an HIV test at least once. (CDC)
- PreventionPrEP: medication to prevent HIVHow PrEP works, the options available, how long it takes to protect you, and what to expect at checkups.
2 min read · Updated October 1, 2026
~99%lower chance of getting HIV from sex when PrEP is taken as prescribed. (CDC)
- TestingUnderstanding testing windowsWhy testing too soon after an exposure can miss an infection, and how to time your HIV and STI tests.
2 min read · Updated October 1, 2026
10–33 daysafter exposure, a lab nucleic acid test can usually detect HIV - the earliest test. (CDC)