Syphilis is a sexually transmitted infection(STI) caused by the bacterium Treponema pallidum subspecies pallidum that can lead to serious health problems if it’s not treated and cured. The signs and symptoms depend on the stage it presents: primary, secondary, latent or tertiary.
Syphilis is usually passed on through vaginal, anal or oral sex without a condom
Syphilis is passed on from direct contact with the skin or tissues of someone with syphilis. So it can be passed on from any sexual contact even without penetration or ejaculation
Syphilis can sometimes be passed on by sharing sex toys
If you’re pregnant, it is possible for syphilis to be passed on to the baby
Many people with syphilis will not have noticeable symptoms.
Syphilis goes through different stages. Symptoms depend on the stage.
Primary syphilis (the first stage)
The symptoms usually appear about 2 to 3 weeks after contact with syphilis, although it can be earlier or up to 3 months later.
Symptoms include:
The ulcer usually heals itself in around 3 to 8 weeks. But without treatment, the syphilis will spread to other parts of the body.
Secondary syphilis
Secondary syphilis happens when syphilis has spread around the body through the bloodstream.
Any symptoms that occur, typically appear around 3 to 10 weeks after the primary stage (which might have gone unnoticed).
Symptoms may include:
Less commonly, some people may get meningitis, hearing loss or eye problems. In fact, the second stage of syphilis can affect just about any part of the body and often gets misdiagnosed as something else – which is why it has the nickname “The Great Imitator”.
Without treatment, symptoms can last for up to 3 months and can come and go.
Latent syphilis
If syphilis still remains untreated, it enters the latent stage. This can last for many years.
Latent syphilis usually has no symptoms, but it may still be passed on to sexual partners and can be passed on to a baby during pregnancy or birth.
Tertiary (late) syphilis
This is the most serious stage. It can affect many parts of the body including the heart and blood vessels, bones, skin, brain and nervous system. This can be life-threatening.
Around 1 in 3 people with untreated syphilis develop tertiary syphilis. This is sometimes more than 20 years after first getting syphilis.

The symptoms of syphilis at different stages show that the first stage syphilis virus appears on the skin surface and is easy to treat. After being cured, it does no harm to the body.
In the secondary stage, it has spread throughout the body through the blood. In the third stage, it has damaged the heart, blood vessels, brain, etc. Even after being cured, it will cause irreversible damage to the body, especially in the third stage, which can threaten life.
Therefore, the earlier the virus is detected and treated, the less damage it will cause to the body. Syphilis self-testing meets this condition. You can use syphilis self-test kits as an auxiliary screening tool.
You can test at home at any time. It only takes 5 minutes, is quick and easy to operate, and will protect your health.