Risk Factors for Sexually Transmitted Infections (STIs)
Risk factors for
sexually transmitted infections (STIs) include:
- Having unprotected sex. People who do not use
condoms have a higher risk of getting an STI.
- Being sexually active
at an early age. Sexual activity before age 18 may increase the risk of getting
an STI, because teens may have more sex partners or they may be less likely to
use condoms to reduce their risk. Girls younger than 18 get STIs 2 to 3 times
more often than those older than 18. The cells of the
transformation zone of the cervix are more susceptible
to infection in teen girls.
- Having more than one sex
- Having a high-risk sex partner (one who has other sex
- Participating in prostitution.
- Using birth
control pills without using condoms.
|Primary Medical Reviewer||Sarah Marshall, MD - Family Medicine|
|Specialist Medical Reviewer||Jeanne Marrazzo, MD, MPH - Infectious Disease|
|Last Revised||December 15, 2010|