A hematologist is a medical doctor who specializes in diagnosing and treating disorders related to the blood and blood-forming tissues. This includes conditions such as anemia, leukemia, and clotting disorders. Hematologists often work in hospitals, clinics, or research settings, where they conduct tests and provide treatments like blood transfusions or chemotherapy. In addition to treating patients, hematologists may also engage in research to better understand blood diseases and develop new therapies. They often collaborate with other specialists, such as oncologists and pathologists, to provide comprehensive care for patients with complex conditions involving the blood.