The formation of petechiae distal to a tourniquet or sphygmomanometer on release of pressure is known as the Rumpel-Leede sign. This sign was reported in 1909 by Theodor Rumpel, and again independently in 1911 by Carl Stockbridge Leede. Historically, the tourniquet test (or Rumpel-Leede Capillary-Fragility Test) was used to assess patients for thrombocytopenia and capillary fragility. Today, the Rumpel-Leede sign may be observed iatrogenically in the context of continuous blood-pressure monitoring [PMID:24382085].