What is syphilis?
Syphilis is a complex bacterial STI that occurs in 4 stages, each presenting with different symptoms.
Syphilis can be cured with antibiotics but may cause serious health problems if you don't get treatment.
How syphilis is transmitted
Syphilis spreads through skin-to-skin rubbing or during unprotected vaginal, anal, and oral sex with someone who has an infection. It can also spread through other forms of sex play such as mutual masturbation. You're more likely to get syphilis when someone has symptoms such as an ulcer or a rash.
If you have syphilis during pregnancy, you can pass the infection onto your baby.
Symptoms of syphilis
Early signs of syphilis include sores or ulcers around the mouth, anus, penis or vagina. These are often painless, don't bleed and can feel like a hard button on the skin. Although they'll usually go away after a few weeks, without treatment you'll still have a syphilis infection.
About 2 to 6 months later, syphilis can cause:
- flu-like symptoms
- a red rash on your torso, palms, and the soles of your feet
- swollen glands
- wart-like lumps around the moist areas of the body
- hair loss.
These symptoms will come and go, some for up to a year. Even if symptoms don’t show or disappear over time, syphilis still remains in the body. This means it can still be passed on to others through sex and to a baby during pregnancy.
The only way to cure syphilis is with treatment. If it isn't treated, the infection can lead to serious, permanent problems like damage to the nerves, brain and large vessels near the heart.
Syphilis and pregnancy
If an unborn baby gets syphilis during pregnancy, the infection can be severe, disabling or life threatening. Syphilis can cause serious birth defects, premature birth and stillbirth.
This is why regular syphilis testing during pregnancy is so important. The earlier syphilis is treated, the lower the risk to your baby.
Preventing syphilis
- Use condoms with water-based lubricant during vaginal and anal sex
- Use condoms or dental dams during oral sex
- Avoid sex if you or someone you’re having sex with has an ulcer or sore on the genitals, bottom or mouth
- Get tested for STIs every 6 to 12 months – the only way to know if you have an infection
- If you're pregnant, get regular syphilis tests during your pregnancy – at the first antenatal visit, at 26 to 28 weeks, and again at 36 weeks
- If you've been diagnosed with syphilis, avoid having sex with anyone until 7 days after you’ve finished your syphilis treatment
Testing for syphilis
Testing for syphilis involves getting a blood test. It can also be tested by a swab if you have an ulcer or a sore.
After getting syphilis, there's a brief time when tests might not pick up the infection. Because of this, you might need to have the test repeated.
Treating syphilis
Syphilis is usually treated with penicillin injections. It's important to have another blood test 3 to 6 months after your treatment to make sure the infection has been cured.
You should also avoid having sex for 7 days after finishing your treatment as you can still pass the infection on to other people during this time.
Book an STI test
Getting tested for STIs is a normal part of a healthy sex life. STI tests are quick, easy, confidential and often free.
Find a GP or local health service
Telling your sexual partners
If you have syphilis, you should tell your current and past sexual partners so they can get tested and treated. This will also help stop you from getting it again. This is called contact tracing or partner notification.