Systemic lupus erythematosus, thrombophilia and antiphospholipid syndrome (APS) can cause recurrent miscarriages and "sticky" blood. As a matter of fact, APS has been found to cause miscarriage in between 15% and 20% of pregnancies.
Read the full article on: Medical Contraindications to Pregnancy – When to Use a Surrogate ( 71).

Sara Salgado
Embryologist
Degree in Biochemistry and Molecular Biology from the University of the Basque Country (UPV/EHU). Master's Degree in Human Assisted Reproduction from the Complutense University of Madrid (UCM). Certificate of University Expert in Genetic Diagnosis Techniques from the University of Valencia (UV).