azoospermia

azoospermia

 [a″zo-o-sper´me-ah]

lack of live spermatozoa in the semen; see also aspermatogenesis.

Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

a·zo·o·sper·mi·a

(ā'zō-ō-sper'mē-ă),

Absence of living spermatozoa in the semen; failure of spermatogenesis.
See also: aspermia.

[G. a- priv. + zōon, animal, + sperma, seed]

Farlex Partner Medical Dictionary © Farlex 2012

azoospermia

Complete absence of sperm in the semen, with resultant infertility.

Azoospermia
• Pretesticular—due to absence of FSH secondary to hypopituitarism, hyperprolactinemia and FSH suppression by exogenous androgens.
• Testicular—The most common cause, in which the testes are atrophic, typically due to cryptorchidism or Sertoli cell-only syndrome, but also orchiditis, cancer, surgery, trauma or radiation.
• Post-testicular—due to vasectomy, agenesis of vas deferens or ejaculatory dysfunction.

Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

azoospermia

Urology Complete absence of sperm in the semen, with resultant infertility. See Oligospermia.

McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

a·zo·o·sper·mi·a

(ā'zō-ō-spĕr'mē-ă)

Absence of living sperms in the semen; failure of spermatogenesis.

[G. a- priv. + zōon, animal, + sperma, seed]

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

azoospermia

Absence of spermatozoa from the seminal fluid, a cause of male sterility. Sperms may still be being produced in the testes.

Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005