Acquired agranulocytosis is a drug-induced blood disorder, characterized by a severe reduction in the number of white blood cells in the blood. White blood cells are part of your body's immune system, which fights infections and bacteria within your body. Symptoms of acquired agranulocytosis are rapid onset of fever, weakness or sore throat, mouth sores and bleeding gums. A low count of white blood cells leaves people with this disorder more susceptible to severe bacterial infection. To diagnose acquired agranulocytosis a physician will ask about medical history and conduct a physical exam. Further blood, bone marrow, and urine tests are commonly conducted as well. Treatment options vary depending on the cause and type of acquired agranulocytosis. The drug causing the disorder should typically be removed. Medication may also be necessary to address the bacterial infections acquired from this disorder.