A scratch on the skin there are bloodstains like scraping how to return a responsibility

The occurrence of allergic

purpura may be related to infection, immune disorders

and other factors, can lead to

different degrees of purpura on the skin, scratching symptoms may be more obvious.

3

, thrombocytopenia Thrombocytopenia is caused

by platelet production disorders, platelet destruction or excessive consumption and other factors, can lead to patients prone to bleeding tendency, after scratching with the hand may make subcutaneous capillary rupture, skin has bloodstain like scraping phenomenon.