Who among the following specializes in conditions affecting the blood?

A hematologist is the medical specialist who focuses on diagnosing, treating, and managing conditions related to the blood. This includes a wide range of disorders such as anemia, clotting disorders, and blood cancers like leukemia and lymphoma. The role of a hematologist is pivotal in identifying abnormalities in blood tests, understanding blood cell production, and interpreting bone marrow function, which are integral to treating various hematological conditions. In addition to their clinical work, hematologists often engage in research related to blood diseases and therapies.

Other specialists mentioned have different areas of focus: cardiologists deal with heart-related conditions, gynecologists focus on women's reproductive health issues, and gastroenterologists specialize in digestive system disorders. Each of these professionals addresses specific systems or types of medical conditions, which is why the training and expertise of a hematologist is uniquely relevant to blood-related health issues.