STI (sexually transmitted infection)
Also known as stdstisexually transmitted infection
An STI is an infection that can pass between partners during intimate contact — common, usually manageable or curable, and best handled with regular testing and open talk.
The gist
STIs are infections spread through intimate contact. They're common, and many are easily treated or managed, especially when caught early — which is why regular testing and honest conversation matter more than stigma. Barriers reduce transmission risk, and knowing your status is an act of care for yourself and partners.
Related
Safer sex
Safer sex is the set of practices — barriers, testing, and honest conversation — that reduce the risk of STIs and unintended pregnancy while keeping intimacy enjoyable.
Condom
A condom is a barrier worn during intimacy that helps prevent both STIs and pregnancy — one of the most effective and accessible tools for safer sex.