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Retrograde ejaculation analysis

Retrograde ejaculation occurs when the semen to be ejaculated, which would normally exit via the urethra, is redirected towards the urinary bladder.

Normally the sphincter of the bladder contracts and the sperm travels to the urethra towards the area of least pressure.

In retrograde ejaculation this sphincter does not function properly. Retrograde ejaculation might be the result of an operation on the prostate, of medications or a complication of diabetes.

Diagnosis is usually by way of a urine analysis performed on a urine sample that is obtained shortly after ejaculation.

Fructose testing

Fructose is secreted by the seminal vesicles, the gland which contributes the major part of ejaculate volume.

Deficient secretion of the seminal vesicles occurs in cases of hypo-androgenism or after infection of the seminal vesicles. In these cases the ejaculate volume is lower than normal and fructose concentration is decreased.

In congenital agenesis of the seminal vesicles, which is commonly associated with congenital bilateral absence of the vas deferens (CBAVD), the patient presents with azoospermia (complete absence of sperm from the seminal fluid), low ejaculate volume, acidic semen pH and there is no fructose in the seminal plasma.

Semen culture

Semen culture checks for bacteria that may cause genital infection in the semen.

Post-vasectomy check

Males who have had a vasectomy should be checked for the presence of sperm in the ejaculate as part of their routine follow up post surgery to verify the success of the procedure.

A semen sample is considered free and clear of sperm when it has been three months after the procedure and at least 25 ejaculations have occurred. The procedure is considered successful if the post vasectomy semen analysis shows no sperm (motile or non-motile) on the direct exam or examination of the centrifuged pellet.

A follow-up analysis is also encouraged at six months post surgery and then as advised by your doctor to rule out the possibility of a spontaneous reconnection.

Please note that no semen test can fully predict fertility. Not all of the tests discussed above are appropriate for every couple. The tests performed will depend upon the findings during your evaluation and discussion with your doctor.