Syphilis is an STD caused by a bacteria. This bacterium can be transmitted through sexual contact. Syphilis can be treated with antibiotic injections. It is important to start treatment as soon as possible.
Groups at risk for getting a syphilis infection are people who have sex without a condom with various bed partners, men who have sex with men, sex workers and visitors to sex workers. If your bed partner belongs to one of these groups, you also have a higher chance of getting a syphilis infection.