What illnesses do they look for in a full blood count?

A full blood count (FBC) is primarily used to assess conditions such as anemia, infections, and various blood disorders. It measures components like red blood cells, white blood cells, and platelets, which can indicate issues like leukemia, bone marrow disorders, or immune system problems. Additionally, abnormalities in these counts can signal dehydration, nutritional deficiencies, or chronic diseases. Overall, an FBC helps provide a broad overview of a person's health and guides further diagnostic testing if necessary.