Syphilis can be spread through anal, vaginal, or oral sex. In the primary stage, people develop either single or multiple sores where the syphilis entered their body. They're often painless, last three to six weeks, and heal regardless of whether or not you got treated. But you still need treatment so the infection doesn’t progress to the next stage. In the secondary stage, you can have sores on the mouth, vagina, or anus and a rough reddish skin rash on your palms and/or the bottoms of your feet. You might also get a fever, swollen lymph nodes, sore throat, hair loss, or fatigue. These symptoms will also go away regardless of treatment, so you still need antibiotics to rid your body of syphilis. If left untreated, syphilis moves to the latent stage where it can remain in your body for years with no signs or symptoms. Most latent cases do not become tertiary, but when they do it can happen 10–30 years after infection. Tertiary syphilis can cause problems with muscle coordination, paralysis, dementia, blindness, internal organ damage, and death.