Sexual conditions, such as STDs and sexual problems, need a medical evaluation and treatment. Frequently, there are no STD symptoms, although there's sometimes a discharge from the vagina or the penis and burning or pain during urination. Doctors use STD tests to diagnose sexually transmitted diseases such as chlamydia, gonorrhea, syphilis, and trichomoniasis. Whereas STD treatment can help resolve these sexual conditions, practicing safe sex can prevent STDs.
4
4
5
5
### Select a Guide
6
6
7
[Young, HIV-Positive, and Unaware](http://www.webmd.com/hiv-aids/news/20090626/young-hiv-positive-and-unaware)
8
About 50,000 adolescents and young adults between 13 and 24-years-of-age were living with the virus that causes AIDS in 2006, but nearly half of them didn't know they were HIV infected, the CDC says.
7
[Oral Sex Cause of Throat Cancer Rise](http://www.webmd.com/sexual-conditions/hpv-genital-warts/news/20090729/oral-sex-cause-throat-cancer-rise)
8
Changing sexual practices have led to a dramatic rise in throat cancer in the United States over the past two decades, and experts say they fear an epidemic of the disease.
9
9
10
[Read Full Article](http://www.webmd.com/hiv-aids/news/20090626/young-hiv-positive-and-unaware)
10
[Read Full Article](http://www.webmd.com/sexual-conditions/hpv-genital-warts/news/20090729/oral-sex-cause-throat-cancer-rise)