Loading…
Loading…
Neutropenia is a low neutrophil count that increases the risk of bacterial infection.
Quick Answer
Neutropenia is a low neutrophil count that increases the risk of bacterial infection. Dr. Sachita Baniya (NMC 20158, 8+ years of clinical experience in haematology and haemato-oncology) evaluates neutropenia at Kathmandu Neurology Clinic & Cognitive Center, 117 Lal Durbar Marg, Kathmandu, Bagmati Province 44600, Nepal — evidence-based, medically reviewed.
Neutropenia can be congenital, acquired, drug-related, autoimmune or due to marrow disease. Severity and duration determine infection risk. Evaluation includes repeated counts, medication review and bone marrow examination when indicated.
Diagnosis requires an absolute neutrophil count below 1.5 × 10⁹/L. Repeated counts, smear review, medication history and infection assessment are followed by bone marrow examination and specific testing when indicated.
Management depends on the cause. Fever during neutropenia requires urgent antibiotics. Growth factors may be used in selected patients. Offending drugs may be stopped. Underlying marrow disease is treated.
Management is individualized and discussed with benefits, limitations, and follow-up.
Avoid unnecessary marrow-suppressing drugs and maintain vaccination. Patients with neutropenia should seek urgent care for fever.
Red flags — seek urgent care
Risk rises below 1.0 × 10⁹/L and is greatest below 0.5 × 10⁹/L. Fever at any level of severe neutropenia needs urgent review.
Yes. Chemotherapy, viral infections and some drugs cause temporary neutropenia. Persistent neutropenia needs investigation.
Fever during severe neutropenia is a medical emergency because infection can progress quickly. Antibiotics are started promptly after cultures.
They are used in selected patients to raise neutrophil counts. They can cause bone pain and require monitoring.
Rare inherited forms exist, such as severe congenital neutropenia. Genetic testing may be considered.
Avoid contact with sick people, unpasteurised foods and unnecessary invasive procedures. Seek urgent care for fever.
It can be, especially when accompanied by other blood count abnormalities. Bone marrow examination may be needed.
Repeat blood counts, infection surveillance and treatment of the underlying cause.
Specialist assessment for abnormal blood counts, anaemia, low platelets, bleeding, clotting and suspected blood disorders.
Infection prevention, transfusion, nausea control and monitoring during blood cancer treatment.
Investigation and management of low white cell counts and recurrent infection.
Myelodysplastic syndromes are clonal marrow disorders causing low blood counts and a variable risk of progression to leukemia.
Aplastic anaemia is a bone marrow failure disorder causing low red cells, white cells and platelets.
Pancytopenia is a reduction in all three blood cell lines, caused by marrow failure, destruction or sequestration.
Content on this website is for general educational purposes only and does not constitute medical advice, diagnosis, or treatment. It is not a substitute for evaluation by a qualified healthcare professional. Always seek the advice of your physician or other qualified provider with any questions regarding a medical condition. Never disregard professional medical advice or delay seeking it because of something you have read on this website. In case of a medical emergency, contact emergency services immediately. No doctor–patient relationship is established by use of this site or by contacting the clinic through the site.
Reviewed by Dr. Jitendra Prasad Yadav • Last reviewed: 2026-11-10
Content is educational and aligns with standard medical references; individual evaluation may vary. External links provide context and do not imply endorsement.
Doctor — medically reviewed
Dr. Sachita Baniya
Consultant Haemato-Oncologist & Clinical Hematologist • MBBS, FCPS (Clinical Haematology) • NMC 20158
This condition guide was medically reviewed by Dr. Sachita Baniya.
On this site
Article information
Emergency
For sudden neurologic change, thunderclap headache, or seizure >5 min, seek emergency services now.