Recently the rapper TI came under criticism for saying he goes with his doctor to her annual gynecologist visits to have her hymen checked to ensure she's still a virgin. Given the songs he sings, that's hypocritical. TI said that he has been doing this annually to his daughter since her 16th birthday. Due to HIPAA, he pressured her to sign a release of information paperwork by asking her if she had something to hide. This is also just plain ignorant and why we need better sexual education. Virginity testing is not real and is something you can't see.
Rapper TI and his daughter, Deyjah
The hymen is a thin, fleshy tissue found at the opening of the vagina. With virginity testing, if the hymen is interpreted to be “intact”, then the woman “passes” the virginity test and it is believed that she has never engaged in penis to vagina sex. If the hymen is interpreted to be “broken” or “torn”, where only the hymenal remnants are found, then the woman “fails” the test and it is believed that she has engaged in sexual relations with a man.
Many other things can cause the hymen to tear. Including sexual abuse, horseback riding, bycycling, inserting a tampon, gymnastics, inserting a speculum during a gynecological exam, among many other activities. Not only that but when a woman has sex, the hymen can simply stretch instead of tear. It's totally possible for the hymen to become completely ruptured or torn during sex. However, less than 50% of women bleed from sex.
Dr. Jennifer Gunter
Imposed virginity testing violates clauses from The World Medical Association’s International Code of Medical Ethics: “A Physician shall be dedicated to providing competent medical service in full professional and moral independence, with compassion and respect for human dignity.”
Dr. Jennifer Gunter criticized TI and said, "50% of teens who have been sexually active with a penis have an intact hymen. The hymen also often breaks just with normal sexual activity. It IS NOT a reliable virginity indicator. (never mind the idea of your future male relatives leering at you)"
 Dr. Jennifer Gunter