Azoospermia is a condition in men, where no sperm are found in the semen (fluid released during ejaculation). While it can feel unexpected to hear, it is not uncommon, affecting around 1% of men and up to 10% of men experiencing infertility. 

Understanding the underlying cause is the most important first step. With today’s advances in reproductive medicine, many men with azoospermia are still able to explore pathways to parenthood.

At Child Fertility, our Oxford-trained specialists provide comprehensive evaluation and personalised care to help identify the cause and explore the most appropriate path forward, with clarity and discretion for patients across Saudi Arabia.

What is azoospermia?

Azoospermia means that a semen analysis shows no detectable sperm in the ejaculate. This is different from a low sperm count, where sperm are present but in reduced numbers.

There are two main types of Azoospermia: Obstructive and non-obstructive azoospermia

• Obstructive azoospermia

This happens when sperm are being produced in the testes, but the reproductive tracts in both testicles are blocked, preventing them from being ejaculated in the semen.

• Non-obstructive azoospermia

This occurs when sperm production in the testes is very low or absent, so no measurable amount of sperm is found in the semen. 

Identifying the type of azoospermia is important to guide both investigation and treatment plan.

What causes azoospermia?

The causes vary depending on whether the condition is obstructive or non-obstructive. Once the type of azoospermia is identified, your fertility specialist can better understand the underlying cause and recommend the most suitable treatment. 

Obstructive azoospermia

This occurs when there is a blockage in the reproductive tract. Common causes include:

• Previous vasectomy
  
• Congenital absence of the vas deferens, sometimes associated with genetic conditions such as cystic fibrosis
  
• Infections or inflammation, which may lead to scarring
  
• Previous surgery or trauma affecting the reproductive tract
  
• Unknown cause
  

In some cases, surgical treatment may restore the passage of sperm, although this depends on the location and severity of the blockage.

Non-Obstructive Azoospermia

This relates to reduced or absent sperm production. Causes may include:

Genetic factors

• Chromosomal differences, most commonly Klinefelter syndrome, which can affect both sperm production and hormone levels.
• Y chromosome microdeletions, where tiny missing sections of genetic material can interfere with the body’s ability to produce sperm.

Hormonal factors

• The use of testosterone therapy or anabolic steroids, which can temporarily switch off sperm production
• Conditions affecting the brain’s hormonal signals, particularly the pituitary gland, including hypopituitarism
• Raised prolactin levels, or hyperprolactinaemia, which can disrupt reproductive hormones
• Broader hormonal imbalances that affect the signals needed for sperm production

Testicular and environmental factors

• Varicocele – where enlarged veins around the testicle can affect the conditions needed for healthy sperm production.
• Previous chemotherapy or radiotherapy – which may impact the testes.
• Testicular injury or past infection – which can affect how sperm are produced.
• Certain medications – which may interfere with sperm production.
• Environmental and lifestyle exposures, including toxins, recreational drugs, or excessive alcohol, which may play a contributory role.

How is azoospermia diagnosed?

Diagnosis typically involves:

• At least two sperm samples, to confirm the diagnosis
• Hormone tests to assess reproductive hormone levels
• Physical examination
• Genetic testing, where appropriate
• Imaging, such as scrotal or transrectal ultrasound in selected cases

This evaluation helps determine whether sperm production is occurring and whether there is a blockage.

Can azoospermia be treated?

In many cases, yes. Treatment is personalised based on the type of azoospermia you may have, your examination results, lab tests, family-planning goals, lifestyle, and other factors specific to you.

Careful examination of the semen sample

Even when a standard semen analysis shows no sperm, further examination by expert embryologists and equipment, may identify very small numbers. In specialist laboratories, the sample can be processed using centrifugation, which concentrates any sperm that may be present into a small pellet. This is then carefully examined under a microscope.

If sperm are found, they can sometimes be frozen and used in assisted reproductive treatments such as IVF with ICSI (intracytoplasmic sperm injection), where a single sperm is injected directly into an egg.

Surgical Sperm Retrieval (SSR)

If no sperm can be found in the ejaculate, sperm can sometimes be retrieved directly from the testes or epididymis using minor surgical procedures. Small samples of testicular tissue are collected and examined under a microscope to identify any sperm present. If viable sperm are found, they can be frozen for future use in IVF with ICSI. 

Success depends on the underlying cause. In obstructive azoospermia, sperm retrieval rates are typically high. In non-obstructive cases, outcomes vary.

Other options for non-obstructive azoospermia

For some men with non-obstructive azoospermia, lifestyle changes, medications, or hormone treatments can help restore sperm production and overall sperm health. However, this is not always possible, and expectations are discussed carefully as part of personalised care.  

Azoospermia and IVF with ICSI

IVF with ICSI is one of the most important treatment options for azoospermia.

In ICSI, a single sperm (retrieved surgically or found in a sample) is directly injected into an egg in the laboratory. This bypasses many natural barriers to fertilisation.

For men with azoospermia, ICSI is often the key pathway that makes biological parenthood possible, particularly when sperm can be retrieved from testicular tissue.

Your specialist will advise whether IVF with ICSI is appropriate based on your diagnosis and sperm retrieval results.

Finding clarity on your fertility journey

Men diagnosed with azoospermia may naturally wonder whether they can have children. Advances in reproductive medicine have made it possible for men with azoospermia to achieve successful outcomes. 

Our Oxford-trained team combines clinical and laboratory expertise with compassionate care, ensuring that you receive clear explanations, realistic guidance, and a treatment plan tailored specifically to you.

To gain a deeper understanding of male reproductive health and the factors that can affect fertility, you can also explore our Male Fertility page.

Take the next step with expert guidance

If you have been diagnosed with azoospermia or are concerned about male infertility, a confidential specialist consultation can help bring clarity to your options.

We offer comprehensive assessment and personalised treatment pathways to support your goals.