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GlossaryOligospermia

condition of having fewer than 15 million sperm per milliliter

Oligospermia, also known as low sperm count or oligozoospermia, is a condition where a man has fewer than 15 million sperm per milliliter of semen. This can affect fertility, making it more difficult for a couple to conceive naturally. Causes can include hormonal imbalances, genetic factors, lifestyle choices, and certain medical conditions.

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research Finasteride and Male Infertility: A Case for Prospective Collaborative Research Databases

1 citations, September 2013 in “Fertility and Sterility”

Finasteride discontinuation increases sperm count in men.

research Androgen Receptor Gene CAG and GGN Polymorphisms in Infertile Nigerian Men

26 citations, November 2009 in “Journal of Endocrinological Investigation”

Certain gene variations are not a major cause of male infertility in Nigerian men.

research 5α-Reductase Inhibitors and Male Reproduction

15 citations, January 2017 in “Advances in Experimental Medicine and Biology”

5α-Reductase inhibitors can negatively affect male sexual function and, in some cases, significantly reduce sperm count, but these effects may be reversible.

research Determination of Concentrations of Sex Steroids in Blood Plasma and Semen of Male Dogs Treated with Delmadinone Acetate or Finasteride

4 citations, January 2001 in “PubMed”

research A Review of Androgen-Progestin Regimens for Male Contraception

43 citations, July 2003 in “Andrology”

Hormonal male contraception is effective and could be market-ready, but more research is needed to ensure safety for all ethnic groups.

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