According to MedicineNet, a low granulocyte count can be caused by bacterial or viral infections, certain cancers, chemotherapy drugs, radiation treatment or certain autoimmune disorders. A low granulocyte count can also... More »

To take a granulocyte count, scientists take a differential white blood cell, or WBC, count, according to the University of Nebraska Omaha. This count measures the presence of neutrophils, eosinophils and basophils, alon... More »

According to, there are two types of granulocytes: ploys and bands, each of which is counted separately to determine the absolute granulocyte count. A normal AGC reading is between 2,500 and 6,000, with lower n... More »

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Causes of a low lymphocyte count include autoimmune disorders, blood diseases, infections, and treatment with steroids, radiation or chemotherapy drugs, states the National Heart, Lung, and Blood Institute. The medical t... More »

Acquired causes of a low lymphocyte count include steroid therapy; autoimmune disorders; radiation therapy; chemotherapy; blood diseases such as blood cancer; and infectious diseases such as tuberculosis, explains the Na... More »

According to Healthline, the most common causes of high granulocyte count include bone marrow disorders, infections and autoimmune disorders. Also called granulocytosis, a high granulocyte count usually indicates a healt... More »

A low white blood cell count, called leukopenia, may indicate bone marrow problems, autoimmune disorders, diseases involving the liver or spleen, certain cancers, or certain illnesses caused by viruses, states MedlinePlu... More »