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Living with Young syndrome

A condition in men with infertility from blocked sperm flow, along with damaged airways in the lungs and sinus infections.

Understanding Young syndrome

Young syndrome is a condition with male infertility, damaged airways in the lungs (bronchiectasis) and inflamed sinuses (sinusitis).

Sperm are made but can't mix with the other fluid in semen because of a blockage in the epididymis, so no sperm are found in semen. It is usually found when men are checked for infertility. Because it looks like cystic fibrosis (CF), doctors may need to rule out CF.

Signs & symptoms

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

  • Male infertility (no sperm in semen)
  • Chronic cough
  • Damaged airways in the lungs (bronchiectasis)
  • Chronic sinus and nose inflammation
  • Repeated sinus and lung infections
  • Repeated ear infections

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 genetic specialists, lung and breathing specialists and urinary and male reproductive system specialists.

  3. Consider genetic testing

    Changes in CFAP221 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

    Resolve: The National Infertility Association may keep lists of experts for this condition.

Care & treatment

Care team
Genetic specialists (geneticists); Lung and breathing specialists (pulmonologists); Urinary and male reproductive system specialists (urologists)
Expert care
Expert lists: Resolve: The National Infertility Association
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 Resolve: The National Infertility Association
  • 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
How do we rule out cystic fibrosis?
What are our options for having children?
Which specialists should manage my lungs and sinuses?

Quick facts

Symptoms usually startAdult
InheritanceAutosomal Recessive
GenesCFAP221

GARD says the exact cause hasn't been identified, but lists the CFAP221 gene. It is listed as autosomal recessive, meaning a child inherits a changed copy of the gene from each parent.

GeneticRespiratory

Also known as: azoospermia-sinopulmonary infections syndrome; azoospermia, obstructive and chronic sinopulmonary infections; azoospermia, obstructive, and chronic sinopulmonary infections; barry-perkins-young syndrome; cild55; ciliary dyskinesia, primary, 55

Patient organizations

Broader rare-disease groups

Source: NIH GARD · Young syndromeGARD ID 341 · 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 Young syndrome.

Explore the Young syndrome blog

Explore research for Young syndrome

Explore actively recruiting Young syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Young syndrome 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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