Purpura is defined as the extravasation of red blood cells from the vasculature into the skin. Depending on their size, purpuric lesions are classified as petechiae, purpura per se or ecchymoses. Some of the disease processes that can lead to purpura are unique to the newborn period. Blue berry- miffin baby, protein C and S deficiency and infectious purpura are the three for which dermatologic consulatation is usually requested. Diseases characterized by purpura in older children are classified as platelet disorders, coagulation abnormalities and vascular defects.