Most adults will require an STD (sexually transmitted disease) test or screening throughout their life. In 2017, nearly 2.2 million adults reported cases of chlamydia, gonorrhea, and syphilis as more cases of these STD grew year-to-year. Additionally, most adults that are sexually active already have a high risks of contracting at least one STD in their lifetime. While most STDs are preventable and treatable, getting a screening as soon as possible can help reduce ...