Secondary syphilis

Syphilis is a chronic systemic sexually transmitted disease caused by Treponema pallidum (TP) infection. It is transmitted mainly through sexual intercourse. The second stage of syphilis is the prevalence of syphilis. Secondary syphilis usually occurs 3-4 weeks after the diarrhea subsides, which is equivalent to 9-12 weeks after infection. Secondary syphilis is the widespread damage caused by Treponema pallidum through the lymph nodes into the bloodstream. In addition to causing skin damage, it can also invade the internal organs and nervous system.