What is Young syndrome (Obstructive Azooospermia)

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Last updated: May 15, 2025View editorial policy

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From the Guidelines

Young syndrome is a rare genetic disorder characterized by chronic sinusitis, bronchiectasis, and male infertility due to obstructive azoospermia. Patients typically experience recurrent respiratory infections, persistent cough with sputum production, and infertility caused by thick, abnormal secretions that block the epididymis, preventing sperm transport. The condition shares similarities with cystic fibrosis but differs in that sweat chloride levels are normal in Young syndrome.

Key Characteristics

  • Chronic sinusitis
  • Bronchiectasis
  • Male infertility due to obstructive azoospermia
  • Recurrent respiratory infections
  • Persistent cough with sputum production
  • Infertility caused by thick, abnormal secretions blocking the epididymis

Treatment

Treatment focuses on managing symptoms rather than curing the underlying condition. This includes:

  • Antibiotics for respiratory infections (such as amoxicillin-clavulanate 875/125 mg twice daily for 10-14 days during acute infections) 1
  • Daily chest physiotherapy to clear secretions
  • Bronchodilators like albuterol (2 puffs every 4-6 hours as needed)
  • Nasal saline irrigations For fertility issues, sperm retrieval techniques combined with assisted reproductive technologies may help achieve pregnancy 1. The syndrome is believed to result from abnormal mucus production and ciliary dysfunction, though the exact genetic mechanism remains unclear. Mercury exposure has been suggested as a possible environmental trigger in some cases.

Fertility Options

  • Sperm retrieval techniques
  • Assisted reproductive technologies (ART)
  • Transurethral resection of ejaculatory ducts (TURED) for ejaculatory duct obstruction (EDO) 1
  • Surgical sperm extraction for use with ART 1

From the Research

Definition of Young Syndrome

  • Young syndrome is a condition characterized by obstructive azoospermia, which is the blockage of the epididymis, and chronic sinopulmonary infections 2, 3.
  • The syndrome is also known to be associated with respiratory function tests, electron microscopy, and the results of surgery 4.

Causes and Symptoms

  • The cause of Young syndrome is often obscure, but it is associated with sinusitis, bronchitis, or bronchiectasis 4, 3.
  • The azoospermia in Young syndrome is due to obstruction of the epididymis by inspissated secretions, and the sperm themselves appear to be normal 3.
  • Men with Young syndrome have only mildly impaired respiratory function and normal spermatogenesis 3.

Diagnosis and Treatment

  • The diagnosis of Young syndrome is based on the occurrence of chronic sinopulmonary infections, persistent azoospermia, normal spermatogenesis, and characteristic epididymal findings, as well as exclusion of cystic fibrosis and the immotile-cilia syndrome 3.
  • Treatment options for Young syndrome include microsurgical reconstruction techniques, such as vasoepididymostomy, which can correct the obstruction and restore fertility 2, 5.
  • In vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) are also effective treatment options for patients with Young syndrome 5.

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Research

Obstructive azoospermia.

The Urologic clinics of North America, 2014

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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