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Azoospermia

Overview

Azoospermia is the complete absence of sperm in the ejaculate. It falls into two broad categories: obstructive azoospermia, where sperm production is normal but blocked from reaching the ejaculate, and non-obstructive azoospermia, where sperm production itself is impaired.

Symptoms

Often no physical symptoms at all
Infertility as the presenting concern
Smaller or softer testicles in some non-obstructive cases
A history of prior vasectomy or infection

Causes

Obstruction blocking sperm transport, impaired sperm production, genetic factors, and hormonal imbalances can all lead to azoospermia.

Risk Factors

Prior vasectomyA common cause of obstructive azoospermia.
Genetic conditionsCertain chromosomal conditions affect sperm production directly.
Undescended testis historyLinked to impaired sperm production later in life.
Prior infection or surgeryCan cause obstruction along the sperm transport pathway.

Diagnosis

Diagnosis includes a repeat semen analysis to confirm the finding, hormone testing, genetic testing where indicated, and a scrotal ultrasound.

Complications If Untreated

Left uninvestigated, an underlying genetic or hormonal cause of azoospermia may go unmanaged alongside the fertility impact.

Treatment Options

Prevention Tips

There's no guaranteed prevention, but prompt treatment of infections and varicocele reduces the risk of some obstructive causes.

Lifestyle Advice

Couples who haven't conceived after a year of trying should seek a fertility evaluation early rather than waiting.

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