Hematology is the science or study of blood, blood-forming organs and blood diseases. In the medical field, hematology includes the treatment of blood disorders and malignancies, including types of hemophilia, leukemia, lymphoma and sickle-cell anemia
 

Hematology additionally spelled haematology is the study of blood, the blood-forming organs, and blood ailments. Hematology incorporates the investigation of etiology, diagnosis, treatment, prognosis, and prevention of blood diseases that influence the production of blood and its parts, for example blood cells, hemoglobin, blood proteins, and the mechanism of coagulation. Hematology is a distinct subspecialty of internal medicine, divide from yet overlapping with the subspecialty of medical oncology. The research facility work that goes into the investigation of blood is regularly performed by a medical technologist. Physicians specialized in hematology are regarded as hematologists or haematologists. Hematologists and hematopathologists for the most part work in conjunction to formulate a diagnosis and deliver the most appropriate therapy. Hematologists likewise conduct studies in oncology-the medical treatment of cancer. Journal of Blood Disorder & Transfusion focus on all the topics covering bleeding disorders such as idiopathic thrombocytopenic purpura, hemophilia and hematological malignancies such as leukemia and lymphoma, treating hemoglobinopathies, in the study of blood transfusion and the work of a blood donation center, in bone marrow and stem cell transplantation.