Antiphospholipid syndrome is a rare
autoimmune disease that has been closely linked to
some cases of recurrent
miscarriage. Antiphospholipid syndrome increases blood
clotting and can cause dangerous blood clots (thrombosis) and circulatory
problems. For some women, the only sign of this condition is an early
miscarriage, a later pregnancy loss related to a poorly functioning
Women with antiphospholipid syndrome are treated during pregnancy
with blood-thinning medicines (heparin, ASA, or both) to prevent clotting
problems and pregnancy loss.
Other types of blood-clotting
disorders (thrombophilias) can cause similar pregnancy problems. Your doctor
can test for various blood-clotting disorders.