Hematology additionally spelled haematology is the study of blood, the blood-forming organs, and blood ailments. Physicians specialized in hematology are regarded as hematologists or haematologists. Physicians who work in hematology research laboratories, and most normally administer them, are pathologists specialized in the diagnosis of hematological diseases, referred to as hematopathologists. 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. Hematologists and hematopathologists for the most part work in conjunction to formulate a diagnosis and deliver the most appropriate therapy. 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. Hematologists likewise conduct studies in oncology-the medical treatment of cancer.