U → Ua-Uz
Ua-Uz
- U.K. Experts Urge HPV Vaccine for Young Gay Men
- U.K. Man Has World's Worst Case of Super-Gonorrhea
- U.S. Birth Rates Continue to Fall
- U.S. Circumcision Rates Drop by 10 Percent: CDC
- U.S. Ends Effort to Limit 'Morning-After' Pill
- U.S. Gonorrhea Rate Drops; Chlamydia, Syphilis Up
- U.S. Teens More Vulnerable to Genital Herpes
- U.S. Women Loosening Up Sexually, Study Shows
- U.S. Women Use 'Withdrawal' for Birth Control
- Unhappy Marriages Could Mean Shorter Lives for Men
- Unsafe Sex Common When Partner Cheats: Study
- Unzip Your Sex Life Pictures Slideshow
- Urine Test for HPV Works Well, Analysis Finds
- US STD Rates Reach All-Time High
- Use of Long-Acting Birth Control Rises Fivefold
- Use of Morning-After Pill on the Rise: CDC