**21. Antiphospholipid antibody syndrome**

Antiphospholipid antibody syndrome is a syndrome characterised by low antiphospholipid antibodies in the blood during pregnancy and arterial and venous thromboses [74, 75]. Just as antiphospholipid antibody syndrome can be seen isolated as primary antiphospholipid antibody syndrome, it may also be seen together with diseases such as systemic lupus erythematosus [4].
