Aspermia

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Aspermia
Classification and external resources
ICD-10 N46
ICD-9 606.0
-spermia,
Further information: Testicular infertility factors
(A)spermia - complete lack of semen
(Asthenozoo)spermia - reduced sperm motility
(Azoo)spermia - absence of sperm cells in semen
(Hyper)spermia - large semen volume
(Hypo)spermia - small semen volume
(Oligozoo)spermia - few spermatozoa in semen
(Necrozoo)spermia - dead or immobile sperms
(Teratozoo)spermia - sperm with abnormal morphology

Aspermia is the complete lack of semen (not to be confused with azoospermia, the lack of sperm cells in the semen). It is associated with infertility.

One of the causes of aspermia is retrograde ejaculation,[1] which can be brought on by excessive drug use, or as a result of prostate surgery.

Another cause of aspermia is ejaculatory duct obstruction, which may result in a complete lack of or a very low-concentration semen (oligospermia), in which the semen contains only the secretion of accessory prostate glands downstream to the orifice of the ejaculatory ducts.

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