Antiphospholipid syndrome (APS), is a disorder of the immune system that is characterised by excessive clotting of blood in the arteries and veins, and/or certain complications of pregnancy as recurrent miscarriages, unexplained fetal death, or premature birth with the presence of antiphospholipid antibodies like anti-cardiolipin or lupus anticoagulant antibodies in the blood.Antiphospholipid syndrome is classified into primary and secondary; the primary is referred to the condition that found in pregnant women with neither clinical nor laboratory evidence of another definite autoimmune...