Hematologists are medical doctors who specialize in blood related conditions such as leukemia, sickle cell anemia, and hemophilia. Hematology covers the study of blood cells, blood vessels, platelets, clotting, lymph nodes, and bone marrow.
There are many types of blood diseases. There are blood cancers such as leukemia. There are clotting disorders such as hemophilia where blood does not clot enough and deep vein thrombosis where blood clots too much.
Hematologists mainly use blood tests to diagnose diseases. There are blood tests to check white blood cell count, red blood cell count, platelet count, and clotting proteins. Treatments often include prescription medication or supplements. Cancers like leukemia are treated with chemotherapy and radiation.