(GRAN-yoo-loh-SITE) A type of immune cell that has granules (small particles) with enzymes that are released during infections, allergic reactions, and asthma. Neutrophils, eosinophils, and basophils are granulocytes. A granulocyte is a type of white blood cell.

What does granulocytes mean in a blood test?

Granulocytes are a type of white blood cell that has small granules. These granules contain proteins. The specific types of granulocytes are neutrophils, eosinophils, and basophils. Granulocytes, specifically neutrophils, help the body fight bacterial infections.

What does it mean when your granulocytes are low?

Low granulocytes is a condition called granulocytopenia, or sometimes called agranulocytosis. A low granulocytes count is usually caused by a condition affecting the blood such as anemia or leukemia. Such conditions either stop the body from being able to produce new blood cells, or damages existing blood cells.