Saliva can transmit syphilis. The saliva of a person with syphilis contains the syphilis spirochete, and it is possible to become ill from infection with the spirochete yourself if you come into contact with the saliva of a person with syphilis.
Syphilis is a sexually transmitted disease caused by infection with the syphilis spirochete, and people with syphilis are the only source of syphilis. Although sexual contact is the main way of spreading syphilis infection, the semen, blood, saliva and breast milk of syphilis patients contain the syphilis spirochetes. In addition to sexual contact, mother-to-child infection and contact with blood and other body fluids are also important causes of syphilis infection.
Syphilis is a contagious disease that cannot be cured on its own. Individuals who find abnormal lesions or discomfort in their genital area should seek prompt and active treatment.