Dr Georgina Forbes
Specialist Doctor in Sexual and Reproductive Healthcare Appointment subject to confirmation
Syphilis is a highly contagious sexually-transmitted infection (STI). Compared to other STIs, it is relatively uncommon, but cases are becoming more frequent.

Syphilis is curable thankfully, can be effectively treated with antibiotics. If detected and treated early, you are not likely to experience major symptoms. Left untreated, however, the condition can progress to affect many areas of the body and can cause serious problems such as blindness, dementia, meningitis, heart problems, and possibly death.
Symptoms start to appear between two to three weeks after infection, and typically include:
After a few weeks symptoms can develop to include:
If you experience the symptoms above, it’s important to visit your GP or local sexual health clinic promptly. They will perform a syphilis test, which usually involves:
Syphilis is an infection that is passed from person to person through sex, which can include vaginal, anal, or oral sex. You can also get infected by sharing sex toys with someone who has syphilis. If you are pregnant, you can pass syphilis to your unborn baby, which is why pregnant women are usually screened for syphilis around eight weeks into pregnancy.
You can also catch syphilis by sharing needles with another drug user who is infected.
You can reduce your risk of being infected if you:
Treating syphilis is straightforward, and involves taking an injection of penicillin, a type of antibiotic. You can take a different antibiotic if you are allergic to penicillin.
If you have had syphilis for longer than a year, you might need more than one injection. To prevent yourself from being infected again, you should avoid sex for two weeks after your injection. Penicillin can cause flu-like symptoms such as a headache, muscle pain and fever, but these symptoms tend to only last for 24 hours.
It is often believed that syphilis can be spread through sharing clothes, swimming pools, toilet seats, and eating utensils, but these are all myths.
People who have been diagnosed with or who have had syphilis are at a high risk of getting HIV, as the sores caused by syphilis allow the disease to enter the body more easily.
Once someone has been treated for syphilis, it is still very possible for that individual to be diagnosed with the sexually transmitted illness again.