Conditions list medically reviewed by George Krucik, MD, MBA
Paroxysmal nocturnal hemoglobinuria (PNH) is a rare disorder that causes red blood cells to break down sooner than they should.
Poliomyelitis, or polio, is a highly contagious disease that is caused by a virus that attacks the body's nervous system.
A transfusion reaction is when your body has an adverse response to a blood transfusion. Learn how transfusion reactions occur and how to minimize your risk.
This feature is for informational purposes only and should not be used to diagnose. Please consult a healthcare professional if you have health concerns.