International audienceThe concept of vulnerability knows a multiplication of its occurrences in European caselaw. The identification of these various vulnerabilities must be accompanied by a highlighting of the unity of this concept, which emerges, in spite of any definition, from the coherence of the European approach. The recognition of vulnerability has as stake, a special protection whose characteristics, nature and measure are examined, the scope of the given protection should be differentiated in respect of the various vulnerabilities.La notion de vulnérabilité connaît une multiplication de ses occurrences dans la jurisprudence de la Cour européenne des droits de l’homme. L’identification et la classification des diverses vulnérabilit...