Introduction Monocytes are a type of white blood cell that plays a major role in the immune system by fighting off pathogens and aiding in tissue repair. While they are essential for maintaining health, an elevated level of monocytes, known as monocytosis, can indicate underlying health issues. Monocytosis can result from a variety of causes, ranging from infections and inflammatory conditions to more serious disorders like malignancies. Understanding monocytosis is important for early diagnosis and effective management of the underlying causes.   What is Monocytosis? Monocytosis is defined as an abnormally high level of monocytes in the blood. Monocytes are…