What is a "hematologist"?

What is a "hematologist"?

A haematologist is a sub-specialist of an internist, meaning the training that physicians go through to become a haematologist includes residency in internal medicine followed by a subspecialisation in haematology. Most training programs in the United States involve both haematology and oncology. So, haematology defined is the study or person who studies blood disorders. Oncology is the study or the treatment of cancer. They go hand in hand. We have oncologists out there treating leukaemias which are more blood-borne disease, and we have haematologists out there treating breast cancer, which is an oncologic disorder. So, most haematologists or oncologists practice both fields.