Immune thrombocytopenia, also previously known as idiopathic thrombocytopenia purpura (ITP), is an uncommon autoimmune condition in which the body’s own immune system attacks platelets (the cells found in the blood which normally help the blood to clot).

Our new reference page discusses the background of ITP, including presentation of the condition and the association between ITP and MMR vaccines. Our page also answers questions around ITP and COVID-19 vaccines, including whether or not COVID-19 vaccines should be administered to people with a history of ITP.

MVEC: Immune thrombocytopenia (ITP)