Etiology of immune thrombocytopenia purpura

First, according to clinical observations and some studies, immune thrombocytopenia purpura may be due to respiratory infection virus or bacteria, some abnormal proteins stimulate the body's immune system, producing antibodies against platelets, thus showing thrombocytopenia. Second, ITP can be secondary to a number of diseases, such as rheumatic immune disease, lupus erythematosus, rheumatoid arthritis, etc. Third, some drugs may cause thrombocytopenia, but this is only a correlation, possibility, the exact cause is not clear.