Syphilis

Syphilis

Caused by the bacterium Treponema pallidum, syphilis is sexually transmitted. It can also be transmitted from mother to child during pregnancy. This disease can affect all organs and have serious consequences if left undiagnosed and untreated.

Our missions

  • Monitoring the epidemiological trends of syphilis

  • Describe the clinical, biological, and behavioral characteristics of people with the disease

  • Promote the adoption of preventive behaviors

  • Informing the general public

  • Issue alerts in the event of an increase in the number of cases and/or clusters of cases diagnosed in the same location

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In brief

Videos, infographics, key statistics, expert interviews… Find the latest news and key information on syphilis here

Journée mondiale du sida, 1er décembre

news

World AIDS Day 2025: Promoting Prevention to Combat the Transmission of HIV and ...

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6 500

people diagnosed with and treated for syphilis in the private sector in 2024

12%

an increase in the number of people diagnosed with syphilis in the private sector between 2022 and 2024

89%

Diagnoses made in the private sector in 2024 involve men

In relation to

Hepatitis B and D

thematic dossier

Viral liver infections can be very severe; hepatitis B and D are transmitted through sexual contact, blood, and from mother to fetus. Vaccination and screening are the cornerstones of prevention.

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Sexual health

thematic dossier

Santé publique France focuses in particular on four areas of sexual health: sexually transmitted infections, including HIV; contraception; combating discrimination; and violence.

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VIH/sida

HIV/AIDS

thematic dossier

HIV, or Human Immunodeficiency Virus, is a sexually transmitted human retrovirus. It weakens the immune system, and if left untreated, leads to AIDS.

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