Low platelet countPlatelet count A measure of how many platelets are in the blood. FNAIT is characterized by severely reduced counts in a fetus or newborn. caused by the immune system attacking platelets. FNAITFetal and neonatal alloimmune thrombocytopenia A rare condition in which a mother’s immune system attacks fetal platelets, leading to dangerously low platelet levels before and/or after birth. is a type of immune-mediated thrombocytopeniaImmune-mediated thrombocytopenia Low platelet count caused by the immune system attacking platelets. FNAIT is a type of immune-mediated thrombocytopenia..
