The soft, spongy tissue inside most bones. Blood cells are formed in the bone marrow.
PNH Awareness
Spread awareness by sharing and learning more. Post the social media graphic, sign up for a conference, March for Marrow, and AAMDSIF Global PNH Patient Registry! Learn more about PNH.
Paroxysmal Nocturnal Hemoglobinuria (PNH) Donate to Support Our Mission
