Young syndrome

What it is

From: Orphanet

A rare respiratory disease characterized by recurrent sinopulmonary infections and bronchiectasis predominantly in the lower lung fields, as well as azoospermia with reduced fertility, due to production of thick, viscous mucus which causes mild airflow obstruction in the respiratory tract and obstruction of sperm transport in the genital tract. Patients commonly present in adulthood. Sweat gland and pancreatic function are normal. The cause of the syndrome is unknown, however mercury exposure had been proposed as a potential cause.

Reported clinical features and what the terms mean

The following findings are associated with this condition in Orphanet. They are not a checklist for diagnosing yourself, and they do not all occur in every affected person. Some are examination, imaging or laboratory findings that cannot be recognised at home.

The frequency labels describe how often a finding was reported among people with the condition in the source. They do not give the chance that a person with that symptom has the condition. Definitions below reproduce HPO terminology; they explain the term, not the likely severity in an individual.

Obstructive azoospermia · Very frequent (99-80%)

Absence of any measurable level of sperm in his semen, resulting from post-testicular obstruction or retrograde ejaculation. This can be differentiated from obstructive azoospermia on the basis of testicular biopsy.

Recurrent bronchitis · Very frequent (99-80%)

An increased susceptibility to bronchitis as manifested by a history of recurrent bronchitis.

Recurrent sinopulmonary infections · Very frequent (99-80%)

An increased susceptibility to infections involving both the paranasal sinuses and the lungs, as manifested by a history of recurrent sinopulmonary infections.

Decreased fertility · Very frequent (99-80%)

Airway obstruction · Frequent (79-30%)

Obstruction of conducting airways of the lung.

Bronchiectasis · Frequent (79-30%)

Persistent abnormal dilatation of the bronchi owing to localized and irreversible destruction and widening of the large airways.

Chronic cough · Frequent (79-30%)

A persistent cough, defined as a cough lasting longer than eight weeks in adults or longer than four weeks in children.

Chronic rhinitis · Frequent (79-30%)

Chronic inflammation of the nasal mucosa.

Chronic sinusitis · Frequent (79-30%)

A chronic form of sinusitis.

Nasal polyposis · Frequent (79-30%)

Polypoidal masses arising mainly from the mucous membranes of the nose and paranasal sinuses. They are freely movable and nontender overgrowths of the mucosa that frequently accompany allergic rhinitis.

Recurrent otitis media · Frequent (79-30%)

Increased susceptibility to otitis media, as manifested by recurrent episodes of otitis media.

Reduced forced vital capacity · Frequent (79-30%)

An abnormal reduction in the amount of air a person can expel following maximal inspiration.

Hearing impairment · Occasional (29-5%)

A decreased magnitude of the sensory perception of sound.

Male infertility · Occasional (29-5%)

When it may begin

From: Orphanet

Adult

Inheritance in the source

From: Orphanet

Unknown

Which doctor should you see?

The suggested department for discussing Young syndrome is Pulmonology, with a pulmonologist / chest physician as the relevant type of clinician. General physician / Family Medicine; paediatrician for children. Referral depends on symptoms.

This is an editorial referral starting point. The appropriate clinic depends on the person’s age, symptoms, previous diagnosis and local services. The first clinician can decide whether another specialty or a team is needed; a department label does not confirm the diagnosis.

How to prepare for an assessment

Bring a short timeline of the main symptoms: when they first appeared, whether they are constant or episodic, what seems to change them, and how they affect daily activities. Include previous reports, discharge summaries, current medicines and supplements, allergies, and any relevant family history. A dated record is more useful than trying to match every feature in an online article.

Ask the clinician what is already established and what remains uncertain. If a test is suggested, ask what question it answers, what its limitations are and how the result would change the next step. The information here is not an instruction to arrange every possible test. In children, bring growth, developmental and school information if it is relevant to the concern.

• What is the likely explanation for the breathing symptoms?
• Would a breathing test or another investigation change management?
• If symptoms worsen, what written action plan should be followed?

Treatment discussions and follow-up

The material gathered for this draft does not provide a complete condition-specific treatment pathway for Young syndrome. That gap does not mean that treatment is unavailable. A clinician needs to establish the diagnosis and review current guidance before recommending medicines, procedures, rehabilitation or other support.

Before leaving the appointment, clarify the next review date, who will communicate results, and whom to contact if the situation changes. Discuss difficulties with sleep, work, school, mobility, eating or emotional wellbeing when these are relevant. Practical support may require coordination between the treating clinician and other services.

The collected references do not establish a complete prevention or long-term outlook section for this entry. Missing information should not be interpreted as proof that prevention is impossible or that a particular outcome is inevitable. Ask what is known for the exact subtype, stage and personal circumstances, and which uncertainties remain.

When to seek emergency help

Severe breathing difficulty, collapse, new stroke-like symptoms, a seizure that is prolonged or repeated without recovery, uncontrolled major bleeding, or an immediate risk of self-harm require emergency help. In India, call 112 or reach the nearest emergency department. This is a general, non-exhaustive warning list; it is not a condition-specific triage tool.