General information, not a diagnosis Method and limitations

FolderUnderstanding and preventing

IST: Screening and Prevention

Sexually transmitted infections can be silent. The right approach depends on contact, exposure and time, not just the absence or presence of symptoms.

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EssentialShort answer

To be retained

The starting points

Ask for a screening tailored to the contact and date. Recent exposure may require rapid management before a test is informative. In France, laboratories and CeGIDDs offer complementary paths.

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01Reference

Preparing for a useful screening

The sampling and the time of the test answer a specific question.

Exposed sites

Some samples are blood, other urine or local. The choice depends on the practices and infection sought.

Test window

Too early a test may be negative despite infection. The professional shall specify the time limit and any check.

Symptoms

Pain, lesion or discharge require consultation; simple screening does not replace examination.

02Reference

Access the French route

Information verified on 3 October 2026; official conditions remain a priority.

My IST test

In the laboratory, the device allows you to search for HIV, hepatitis B, syphilis, gonorrhea and chlamydia without a prescription.

Support

Sickness insurance indicates 100% coverage of the five screenings for children under 26 years of age. Check your situation for other ages.

Other routes

CeGIDDs allow dedicated support. The home kit is provided by a separate device, the criteria of which are specified on the official website.

03Reference

Prevention remains complementary

A test provides information on a desired infection at a given time.

Protection

Condoms reduce the risk of many STIs without protecting them from all lesions outside the covered area.

Targeted prevention

Hepatitis B vaccination and HIV prevention respond to specific indications.

Positive result

The treatment and management of partners are discussed with a professional; avoid self-medication.

QuestionsClarifications

Frequently Asked Questions

Does a blood check look for all the STIs?

No. The sampling tests and sites shall be selected according to exposure. An untargeted check-up may miss an infection.

Does a negative test exempt any prevention?

No. It depends on the infection sought, the sampling and the delay. It does not protect against future exposure.

Moving from reading to exchanging

Keep the results complete with their dates and prepare questions on their interpretation. Organize information for a health professional →

Institutional sources

External sources can evolve. Check their date and instructions for your territory.