Of course, your issues with procreation do not necessarily have to come from azoospermia. The causes of infertility in men can be wide and varied.

Some examples of what causes male infertility, then, include:

• A lack of sperm
• Sperm which is unable to swim correctly, but isn’t blocked.
• Abnormal sperm in terms of shade, making movement and fertilization harder.
• Testicular damage, either physically or through other reasons such as congenital disabilities.
•  Issues with regards to your ability to ejaculate.
• Medical imbalances caused by medicines such as sulfasalazine.

You can find out more common male infertility causes here.

However, please note that your reasons for male infertility might stem from a condition known as hypogonadism, which is a condition that creates deficient testosterone levels.

Low testosterone levels will directly impact upon your ability to produce sperm. Low testosterone can be caused by the use of illegal drugs, or Klinefelter syndrome; a condition where you could be born with an extra female chromosome.

This condition affects around 7% of men who have infertility problems, so cannot be ruled out.

Alternatively, you might be dealing with a condition known as Varicocele. This condition is an abnormal change within the testicular veins, which is a vein used to help get rid of any dirty blood.

This change would cause you to suffer from problems such as high temperatures and eventually will cause problems with sperm production and motility.

Again, this is why making sure you undergo a thorough and clear investigation is important.

This investigation will help you to work out what the problem is and, most importantly, solve the cause of your zero sperm count.

The development of a tumor could also cause low sperm counts.

Especially if you are looking to find the problem to an issue like zero sperm count or even azoospermia itself, solutions do exist.