as chlamydia, gonorrhea, human papillomavirus (HPV), herpes, and HIV may sometimes produce few or no noticeable symptoms.
A person can therefore feel completely healthy while still carrying an infection.
That’s why judging someone’s sexual health based on appearance, hygiene, or how healthy they seem isn’t reliable.
Testing and prevention are much more useful.
2. Condoms Can Reduce—but Not Eliminate—Risk
Condoms are among the most accessible tools for reducing the transmission of many sexually transmitted infections and preventing pregnancy.
However, they aren’t a perfect shield against every infection.
Some infections can spread through skin-to-skin contact involving areas that aren’t covered by a condom.
Correct and consistent use nevertheless provides important protection.
Using a new condom for every act of vaginal, anal, or oral sex where barrier protection is appropriate can substantially reduce risk.
3. Pregnancy Is Another Consideration
For people who can become pregnant, unprotected vaginal sex can result in pregnancy.
