What causes thrombocytopenic purpura?
Caregivers do not exactly know what causes ITP. It is thought that problems in the body’s immune system may cause ITP. The immune system is the part of the body that fights infection. Normally, the immune system makes antibodies or substances that destroy germs, such as virus and bacteria. With ITP, antibodies stick to the platelets, so that the spleen or liver mistakenly destroys them as well. Any of the following may trigger the immune system to cause ITP: • Infection by a germ, called a virus. • Medicines, such as antibiotics, blood thinners, and medicines for cholesterol or seizures. • Vaccines, such as those for measles, mumps and rubella.
