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Male Infertility

02 Apr 2012
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Infertility is the inability to become pregnant after one year of unprotected sex.

Infertility can be grouped into two categories: primary infertility and secondary infertility.

  • Primary infertility is when a couple has not become pregnant after one year of trying to conceive.
  • Secondary infertility is when a couple has become pregnant once before, but has not been able to conceive again.


Male infertility may occur if there is a low sperm count or if sperm cannot be released.

Causes of male infertility can include:

  • Exposure to high heat for long periods of time
  • Pollutants in the environment
  • Excessive alcohol consumption or drug use
  • Infection
  • Older age
  • Erectile dysfunction
  • Ejaculation problems
  • Cancer treatments (radiation or chemotherapy)
  • Smoking


For further information consult your general practitioner.




Video: What is Unexplained Infertility, Jason Griffith MD, Houston Fertility Institute



Video: Infertility – Causes, Dr John A Schnorr, Medical Director of the Southeast Fertility Center




Auckland DHB – Infertility



NHS – Infertility
BestHealth BMJ – Infertility
PubMed Health – Infertility



British Medical Journal
Journal of the American Medical Association
The Lancet


FORUMS – Infertility Support – Infertility Support Group



The information above is of a general nature and is designed to provide you with an overview of the topic, with links to local and international resources that may be of interest. We do our best to ensure that this information is accurate and up to date.

You should always, however, seek specific professional medical advice, treatment and care appropriate to you, and as such we strongly recommend you consult with your general practitioner first.



Updated April 2012