Allergic purpura is a vascular disease that affects adolescents. It can be associated with symptoms such as purpura of the skin, general malaise, hypothermia and fatigue. The disease is caused by a variety of factors, including infections (bacterial, viral, etc.), food allergies and medications (antibiotics, antipyretics, etc.). However, unlike most other bleeding disorders, platelet counts are not low and are usually in the normal range. It can be differentiated from other bleeding disorders by routine blood and stool tests and serological tests.