Table 2

Causes of secondary ITP

  • Antiphospholipid syndrome

  • Autoimmune thrombocytopenia (eg, Evans syndrome)

  • Common variable immune deficiency

  • Drug administration side effect

  • Infection with cytomegalovirus, Helicobacter pylori, hepatitis C, human immunodeficiency virus, varicella zoster

  • Lymphoproliferative disorders

  • Bone marrow transplantation side effect

  • Vaccination side effect

  • Systemic lupus erythematosus

  • Evans syndrome is associated with autoimmune thrombocytopenia with coincident hemolytic anemia.