Antiphospholipid Syndrome

Antiphospholipid syndrome (APS) is a condition that makes your body much more likely than usual to form blood clots. Healthcare providers sometimes call it antiphospholipid antibody syndrome.

The blood clots from APS can cause severe, life-threatening complications like strokes. They can also make pregnant people much more likely to experience miscarriages and other pregnancy complications.

APS is an autoimmune disease. Autoimmune diseases happen when your immune system accidentally attacks your body instead of protecting it.