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Living with Cyclical neutropenia

A genetic condition where white blood cell levels drop on a regular cycle, leading to repeated infections, mouth sores, and fevers.

Understanding Cyclical neutropenia

Cyclical neutropenia is a genetic condition in which levels of infection-fighting white blood cells (neutrophils) regularly drop, causing frequent infections.

Episodes of low neutrophils (neutropenia) show up at birth or soon after. For most people, they come back about every 21 days and last about 3 to 5 days. Health problems happen only during these episodes. When neutrophil levels are normal, the risk of infection is not higher.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Repeated infections of the sinuses, airways, and skin
  • Mouth sores (ulcers)
  • Inflamed gums (gingivitis)
  • Sore throat (pharyngitis)
  • Recurrent fever
  • Abdominal pain

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include allergy and immune system specialists and genetic specialists.

  3. Consider genetic testing

    Changes in ELANE are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

  4. Connect with expert centers

    Immune Deficiency Foundation may keep lists of experts for this condition.

Care & treatment

Care team
Allergy and immune system specialists (allergists / immunologists); Genetic specialists (geneticists)
Expert care
Expert lists: Immune Deficiency Foundation
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with National Neutropenia Network and other patient organizations
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Can genetic testing for the ELANE gene confirm the diagnosis?
How can we track the timing of neutropenia episodes?
What should we do about fevers or mouth sores during an episode?

Quick facts

Symptoms usually startany time in life
InheritanceAutosomal Dominant
GenesELANE

Changes in the ELANE gene cause this condition. It is inherited in an autosomal dominant way, which means a changed copy of the gene from one parent can be enough to cause it.

Genetic

Also known as: ch; cn; cyclic agranulocytosis; cyclic hematopoiesis; cyclic neutropenia; cyclically decreased total neutrophil count

Patient organizations

Source: NIH GARD · Cyclical neutropeniaGARD ID 6229 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Cyclical neutropenia.

Explore the Cyclical neutropenia blog

Explore research for Cyclical neutropenia

Explore actively recruiting Cyclical neutropenia studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Cyclical neutropenia with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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