The so-called Danlos or Ehlers-Danlos syndrome consists of three symptoms: (1) pronounced fragility of the skin and its blood vessels, with breaking, splitting and the formation of hematomas and pseudotumors subsequent to the slightest trauma (dermatorrhexis-fragilitas cutis), (2) a more or less pronounced hyperlaxity and hyperelasticity of the skin (dermatochalasis-laxitas cutis) and (3) more or less pronounced hyperlaxity or hyperflexibility of the joints (arthrochalasis-laxitas articularis).