Aspermia

Aspermia

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.

One of the causes of aspermia is retrograde ejaculation; because of that, the sperm is kept in the bladder, and the final ejaculate is 0 mL. It 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.

Aspermia can be caused by androgen deficiency. This can be the result of the 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 treatment for prostate cancer, such as maximal androgen blockade.

It is important not to confuse aspermia with azoospermia, which is a pathological condition in which ejaculation occurs, but no sperm are found in the semen. In aspermia, spermatozoa are produced, but they cannot be ejaculated. The sperm remain in the urinary bladder, where they die due to the acidic environment of the urine. To prevent this death of the sperm, oral bicarbonate is administered for a while, which is bases on the urine, so that the sperm are no longer exposed to such a hostile environment and can be collected from the urine to be used in IVF.

Ejaculation topics

Aspermia • Azoospermia • Coitus interruptus • Coitus reservatus • Delayed ejaculation • Erection • Female ejaculation • Premature ejaculation • Retrograde ejaculation Aspermia—lack of semen; anejaculation Asthenozoospermia—sperm motility below lower reference limit Azoospermia—absence of sperm in the ejaculate Hyperspermia—semen volume above upper reference limit Hypospermia—semen volume below lower reference limit Oligozoospermia—total sperm count below lower reference limit Necrozoospermia—absence of living sperm in the ejaculate Teratozoospermia—fraction of normally-formed sperm below lower reference limit Another cause of aspermia is ejaculatory duct obstruction, which may result in a complete lack or a very low-concentration of 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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