Azoospermia

By RRM Academy Reviewed by Dr. Naomi Whittaker, MD, Board-Certified OBGYN, MIGS, NFPMC, FCI Updated April 18, 2026

Complete absence of sperm in the ejaculate. Classified as:

• Obstructive: Sperm production is normal but outflow is blocked (e.g., prior vasectomy, epididymal blockage); potentially correctable surgically
• Non-obstructive: Impaired spermatogenesis (e.g., Sertoli cell-only syndrome, maturation arrest); may still have focal sperm production accessible via testicular sperm extraction (TESE)

This content is for educational purposes only and does not constitute medical advice. Consult an RRM clinician or healthcare provider for guidance specific to your situation.