MYTH You would know if you had syphilis. FACT Like many STIs, syphilis can have no symptoms. Find testing near you: gettested.cdc.gov Public Health IOWA HHS Syphilis is a sexually transmissible infection (STI). It's more common and easier to get than you might think. Not everyone who has syphilis has symptoms, so people often don't realize they have it. If you do have symptoms, they can include a painless sore or rash. Thankfully, syphilis is easy to test, treat and cure! If you're sexually active, make sure that getting tested syphilis is part of your health routine. MYTH You would know if you had syphilis . FACT Like many STIs , syphilis can have no symptoms . Find testing near you : gettested.cdc.gov Public Health IOWA HHS Syphilis is a sexually transmissible infection ( STI ) . It's more common and easier to get than you might think . Not everyone who has syphilis has symptoms , so people often don't realize they have it . If you do have symptoms , they can include a painless sore or rash . Thankfully , syphilis is easy to test , treat and cure ! If you're sexually active , make sure that getting tested syphilis is part of your health routine .