Synonyms for aspermia or Related words with aspermia
Examples of "aspermia"
is the complete lack of semen with ejaculation (not to be confused with azoospermia, the lack of sperm cells in the semen). It is associated with infertility.
Ejaculatory duct obstruction may result in a complete lack of semen (
) or a very low-volume semen (oligospermia) which may contain only the secretion of accessory prostate glands downstream to the orifice of the ejaculatory ducts.
One of the causes of
is retrograde ejaculation, which can be brought on by excessive drug use, or as a result of prostate surgery. It can also be caused by alpha blockers such as tamsulosin and silodosin.
Ejaculatory duct obstruction is an acquired or congenital pathological condition in which one or both ejaculatory ducts are obstructed. In the case that both ejaculatory ducts are obstructed, this illness presents with the symptoms of
and male infertility.,
Low-volume, runny/fluid semen (oligospermia) or no semen at all (dry ejaculation/
) are a logical consequence of an obstruction downstream of the seminal vesicles which contribute most to the volume of the semen. Usually, men will be able to observe a runny/fluid, low-volume semen by themselves during masturbation. Since the seminal vesicles contain a viscous, alkaline fluid rich in fructose, a chemical analysis of the semen of affected men will result in a low concentration of fructose and a low pH. A microscopic semen analysis will reveal
can be caused by androgen deficiency. This can be the result of absence of puberty, in which the prostate gland and seminal vesicles (which are the main sources of semen) remain small due to lack of androgen exposure and do not produce seminal fluid, or of treatment for prostate cancer, such as maximal androgen blockade.
Another cause of
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.
If both ejaculatory ducts are completely obstructed, affected men will demonstrate male infertility due to
/azoospermia. They will suffer from a very low volume of semen which lacks the gel-like fluid of the seminal vesicles or from no semen at all while they are able to have the sensation of an orgasm during which they will have involuntary contractions of the pelvic musculature. This is contrary to some other forms of anejaculation.
Bicalutamide reduces the size of the prostate gland and seminal vesicles, though not of the testes. Significantly reduced penile length is also a recognized adverse effect of . Reversible hypospermia or
(that is, reduced or absent semen/ejaculate production) may occur. However, bicalutamide does not appear to adversely affect spermatogenesis, and thus may not necessarily abolish the capacity/potential for fertility in men (see below). Due to the induction of chronic overproduction of and testosterone, there was concern that long-term bicalutamide monotherapy might induce Leydig cell hyperplasia and tumors (usually benign), but the evidence indicates that Leydig cell hyperplasia does not occur to a significant extent.
In contrast, if both vasa deferentia are obstructed (which may be the result of intended sterilization), a semen analysis will also reveal
/azoospermia, but an almost normal volume of the semen, since the efflux of the seminal vesicles is not hindered. This is because approx. 80% of the volume of the semen is the gel-like fluid originating from the seminal vesicles whereas the fraction from the testicles / epididymis, which contains the spermatozoa accounts for only 5–10% of the volume of the semen. In addition, if an obstruction of the vasa deferentia is the cause for the azoospermia, the concentration of fructose in the semen will also be normal, since the fructose comes primarily from the fluid stored in the seminal vesicles. If the seminal-vesicles contain spermatozoa, but the semen does not, the obstruction must be downstream of the seminal vesicles and the ejaculatory ducts are very likely to be obstructed, provided that other causes for a dry ejaculation/
such as an retrograde ejaculation are ruled out.
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