Syphilis

The risk of a syphilis infection from sex cannot be ruled out, but it can be reduced by using condoms. You should avoid contact with any areas of your partner's skin that are weeping or oozing. If you use sex toys, you should wash the toy thoroughly after use and if you are having sex with multiple partners, you should put a new condom on the toy with every partner..

Especially important: people with frequently changing sexual partners should be tested for syphilis once a year, in order to treat the disease promptly if necessary and to avoid passing it on to others.