Antiphospholipid antibody syndrome (APS) is a rare autoimmune condition that causes thickening of the circulating blood. APS is estimated to affect one in 2,000 people in the United States alone. But while there is no cure for the condition, the risk of developing blood clots can be greatly reduced if it's correctly diagnosed. So, what are the symptoms of APS, and how is it treated?
Click through for an overview of this little-known and potentially fatal disease.