What Causes Purpura

There are three main causes of purpura: Disorders of platelets, disorders of coagulation and vasculitis. These are not mutually exclusive, he explains, because if platelets and the factors involved in coagulation have been destroyed or incapacitated, coagulation is disrupted.

What is the most common cause of purpura?

There are three main causes of purpura: Disorders of platelets, disorders of coagulation and vasculitis. These are not mutually exclusive, he explains, because if platelets and the factors involved in coagulation have been destroyed or incapacitated, coagulation is disrupted.

What conditions can cause purpura?

Those that cause purpuric rashes include meningococcal septicaemia, streptococcal septicaemia and diphtheria. Several acute viral infections also cause purpuric rashes. These include smallpox, chickenpox, measles, parvovirus B19 and haemorrhagic fevers caused by Ebola virus, Rift Valley virus and Lassa fever.