Blood clots, a low platelet count, and damaged red blood cells cause the signs and symptoms of thrombotic thrombocytopenic purpura (TTP).
The signs and symptoms include:
If you've had TTP and have any of these signs or symptoms, you may be having a relapse (flareup). Ask your doctor when to call him or her or seek emergency care.
Clinical trials are research studies that explore whether a medical strategy, treatment, or device is safe and effective for humans.
The NHLBI updates Health Topics articles on a biennial cycle based on a thorough review of research findings and new literature. The articles also are updated as needed if important new research is published. The date on each Health Topics article reflects when the content was originally posted or last revised.