Getting tested for a sexually transmitted infection (STI) does not have to be complicated or uncomfortable. Whether you have symptoms, had a possible exposure, started seeing someone new, or just want peace of mind, an STI test can give you answers, even if you feel completely fine. Many common infections, including chlamydia, gonorrhea, and HIV, can be present without noticeable symptoms, which is why routine screening is a good idea even when nothing feels wrong ...