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What can cause a man to be infertile?

By Sara Salgado.
Last Update: 10/26/2017

More than 90% of male infertility or sterility cases are caused by sperm abnormalities, including poor sperm quality, low sperm count, abnormal morphology, or a combination between all of them. Other causes that can affect a man's fertility are: anatomical problems, genetic defects, hormonal imbalances, etc.

See also: Male infertility: causes, symptoms, treatment and statistics.

Suggested for you: Male Fertility Testing – How Do You Know if You Are Infertile?.

 Sara Salgado
Sara Salgado
BSc, MSc
Embryologist
Degree in Biochemistry and Molecular Biology from the University of the Basque Country (UPV/EHU). Master's Degree in Human Assisted Reproduction from the Complutense University of Madrid (UCM). Certificate of University Expert in Genetic Diagnosis Techniques from the University of Valencia (UV).
Embryologist. Degree in Biochemistry and Molecular Biology from the University of the Basque Country (UPV/EHU). Master's Degree in Human Assisted Reproduction from the Complutense University of Madrid (UCM). Certificate of University Expert in Genetic Diagnosis Techniques from the University of Valencia (UV).
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