The Full form of DLC is Differential Leukocyte Count. A blood test report comprises numerous results about our range of complete blood count (CBC), platelets, haemoglobin (Hb), red blood cells (RBCs) and white blood cells (WBCs), etc. Among these, a Total Leukocyte Count (TLC), Differential Leukocyte Count (DLC) tests are some of the most common kind of blood tests that are suggested by doctors. While a TLC determines the number of white blood cells in the body, a DLC is done to measure the percentage of each type of white blood cell or leukocyte in your blood. In adults, there are five types of normal WBCs in the blood that are; Neutrophils or Polymorphs, Lymphocytes (B and T cells), Monocytes, Eosinophils, Basophils and Band or young neutrophils. TLC and DLC blood test gives a basic idea about the kind of disease you are suffering from and are done at a primary level for a patient. It tells us if there is any fever, cough, urine infection, etc. It also gives an idea if there is anything more serious. TLC and DLC are good tests to get done if a person is suffering from any kind of problem.