This information supports, and does not replace, advice from your healthcare professional.
Overview
Low white blood cell count (leukopenia) is a reduction in the number of white blood cells, which increases susceptibility to infections.
Symptoms
Frequent or severe infections Fever or chills Fatigue or weakness Sore throat or mouth ulcers
Causes
Bone marrow disorders or autoimmune conditions Certain medications (chemotherapy, immunosuppressants) Severe infections or viral illnesses Nutritional deficiencies (vitamins or minerals)
Diagnosis
Complete blood count (CBC) to measure white blood cells Bone marrow biopsy if needed Review of medications and medical history
Treatment
Treat underlying cause Medications to stimulate white blood cell production Infection prevention strategies Supportive care including nutrition and monitoring