Syphilis

Key facts Syphilis is a sexually transmitted infection (STI). It is caused by bacteria and is easy to cure if found early. There are 4 stages of syphilis infection. If not treated, syphilis can lead to serious complications in your brain, eyes and heart. What is syphilis? Syphilis is a sexually transmitted infection (STI). It is caused by bacteria and can cause serious health problems if left untreated. However, it is easy to cure if found early. Syphilis is rare in Australia, but the numbers are increasing, especially in men who have sex with men and young Aboriginal and Torres