Is Allergic Purpura a Sexual Disease?

Allergic purpura, also known as self-limiting acute hemorrhage, is an allergic vasculitis that invades the skin and other organs, arterioles and capillaries. The cause of the disease may be viral infection, certain drug effects, allergies, etc., so that IgA, IgG circulating immune complexes are formed in the body, deposited in the upper dermis capillaries causing vasculitis. The main manifestations are purpura, abdominal pain, arthralgia and kidney damage, but platelets are not reduced. Some people think that allergic purpura and variant skin vasculitis belong to the same spectrum disease, this disease is the most common childhood vasculitis, mostly occurs in preschool children, most common onset age is 7-14 years old, infants less than one year old are rare.