Neutropenia is a medical condition characterized by an abnormally low level of neutrophils, a type of white blood cell essential for fighting infections. It can result from various causes, including bone marrow disorders, certain medications, autoimmune diseases, and infections. Individuals with neutropenia are at a heightened risk of infections and may require medical monitoring and treatment to manage the condition. The severity and implications of neutropenia depend on the underlying cause and the degree of neutrophil deficiency.