The Immunological Thrombocytopenic Purpura disease is so named because it can produce purple patches or spots on the skin, Thrombocytopenic because platelets drop to less than 100,000 cubic millimeters (mm3) and Immunological due to the presence of antibody against the platelets. Currently called Primary Immune Thrombocytopenia, to define the absence of an underlying cause that justifies the decline of platelets and the term purpura is eliminated because the disease does not always produce them.

The scabies is a contagious illness caused by the infestation of the skin, by the mite Sarcoptes scabiei, hominis variety that can appear in any stage of the life, in diverse social layers, although it is more frequent where it predominates over the overcrowding, and when the hygienic practices are scarce.