
Blood disorders are caused due to lack of blood components. These components include red blood cells, white blood cells, and platelets. Anemia, leucopenia, and thrombocytopenia are some of the common blood disorders. Some of the common symptoms of blood diseases include fatigue, headache, weakness, fever, infections, and bleeding. Acquired orphan blood disease is a type of rare blood disorder, which occurs due to the presence of insufficient amount of red blood cells in the blood. This disease is characterized by the body's inability to produce red blood cells. Moreover, improper functioning of bone marrow also leads to lack of red blood cells in blood, which in turn results in a decrease in platelet numbers. This decrease in platelet number causes anemia and thrombosis. Anemia is a blood condition characterized by less number of red blood cells. Loss of blood is the commonest cause of anemia and it further results in chronic outcomes. Thrombosis refers to the formation of blood clot in blood vessels. Some of the common types of orphan blood disease, which lead to acquired orphan blood diseases, include Paroxysmal Nocturnal Hemoglobinuria (PNH), Idiopathic Thrombocytopenic Purpura (ITP), Myelodysplastic Syndrome (MDS), Myelofibrosis (MF), and Polycythemia Vera (PV). PNH is a common blood disease characterized by severe anemia. Some of the available treatment options for acquired orphan blood disease include medication, bone marrow transplant, blood transfusion, and iron therapy.