A heamatologist is a specialist in heamotology, the science or study of blood, blood-forming organs and blood diseases. The medical aspect of heamotology is concerned with the treatment of blood disorders and malignancies, including types of hemophilia, leukemia, lymphoma and sickle-cell anemia. Heamotology is a branch of internal medicine that deals with the physiology, pathology, etiology, diagnosis, treatment, prognosis and prevention of blood-related disorders. haemotologist doctors bangalore