You might need haematology tests when your doctor wants to check for conditions affecting your blood, such as anemia (which means having too few red blood cells), bleeding problems, or blood cancers like leukemia. These tests look at different parts of your blood to help diagnose and monitor common issues like anemia, leukemia, and clotting disorders, which affect how your blood clots. Understanding your blood health can help your doctor find the right treatment for you.