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Does obesity in men provoke infertility?

By Victoria Moliner.
Last Update: 08/14/2018

It is scientifically proven that men with a body mass index greater than 30 have poorer sperm quality and therefore have greater difficulties in getting a woman pregnant naturally.

The reason for this is that men with excess weight often have low levels of androgens, such as testosterone, the hormone responsible for regulating the formation of sperm in the testicles. As a consequence of this decrease in male sex hormones, spermatogenesis is affected and oligozoospermia may appear.

Suggested for you: Infertility and BMI: How does Weight affect Fertility? and Treatments for Male Infertility.

 Victoria Moliner
Victoria Moliner
BSc, MSc
Embryologist
Degree in Biochemistry and Biomedical Sciences from the University of Valencia (UV). Master's Degree in Biotechnology of Human Assisted Reproduction from the UV and the Valencian Infertility Institute (IVI). Presently, she works as a Research Biologist.
Embryologist. Degree in Biochemistry and Biomedical Sciences from the University of Valencia (UV). Master's Degree in Biotechnology of Human Assisted Reproduction from the UV and the Valencian Infertility Institute (IVI). Presently, she works as a Research Biologist.
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