Syphilis: The Silent STI — Stages, Symptoms, and Home Testing

Syphilis is a bacterial STI caused by Treponema pallidum. After declining for decades, syphilis is experiencing a global resurgence — with cases rising sharply across Europe and North America. It is sometimes called "the great imitator" because its symptoms can closely mimic many other diseases, making it easy to miss.

The Stages of Syphilis

Syphilis progresses through four distinct stages if left untreated:

Primary Stage

A painless sore (chancre) appears at the site of infection — usually the genitals, anus, lips, or mouth. It appears 10–90 days after exposure and heals on its own within 3–6 weeks, leading many people to believe they are no longer infected.

Secondary Stage

Weeks to months after the primary stage, a non-itchy rash often appears on the palms of the hands and soles of the feet. Other symptoms include flu-like illness, swollen lymph nodes, and mouth sores.

Latent Stage

All visible symptoms disappear, but the bacteria remain in the body. This stage can last for years. The person is still infected but may not be contagious.

Tertiary Stage

If still untreated, syphilis can damage the heart, brain, nerves, and other organs — with potentially life-threatening consequences including paralysis, blindness, and dementia.

Who Is at Risk?

Anyone who is sexually active can contract Syphilis. Risk is higher for people with multiple partners, men who have sex with men, and those who do not use condoms consistently.

The Importance of Early Testing

Syphilis is completely curable in its early stages with antibiotics (typically penicillin). The key is catching it before it progresses. Testing is recommended 3 weeks after potential exposure for best accuracy.

Test for Syphilis at Home

The Labssy Syphilis Rapid Test Kit detects syphilis antibodies from a small blood sample using a finger-prick lancet. Results in 15 minutes, over 98.7% accuracy, shipped in plain packaging.

Get Your Syphilis Test Kit — €25

A positive home test result must be confirmed by a healthcare professional. Do not delay seeking medical advice if you test positive.