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  2. Male infertility - Wikipedia

    en.wikipedia.org/wiki/Male_infertility

    The male infertility crisis is an increase in male infertility since the mid-1970s. [91] The issue attracted media attention after a 2017 meta-analysis found that sperm counts in Western countries had declined by 52.4 percent between 1973 and 2011.

  3. Sperm motility - Wikipedia

    en.wikipedia.org/wiki/Sperm_motility

    Sperm motility describes the ability of sperm to move properly through the female reproductive tract (internal fertilization) or through water (external fertilization) to reach the egg. Sperm motility can also be thought of as the quality , which is a factor in successful conception ; sperm that do not "swim" properly will not reach the egg in ...

  4. Infertility - Wikipedia

    en.wikipedia.org/wiki/Infertility

    The main cause of male infertility is low semen quality. In men who have the necessary reproductive organs to procreate, infertility can be caused by low sperm count due to endocrine problems, drugs, radiation, or infection. There may be testicular malformations, hormone imbalance, or blockage of the man's duct system.

  5. Semen analysis - Wikipedia

    en.wikipedia.org/wiki/Semen_analysis

    Total motile spermatozoa (TMS) [25] or total motile sperm count (TMSC) [26] is a combination of sperm count, motility and volume, measuring how many million sperm cells in an entire ejaculate are motile. Use of approximately 20 million sperm of motility grade c or d in ICI, and 5 million ones in IUI may be an approximate recommendation.

  6. Semen quality - Wikipedia

    en.wikipedia.org/wiki/Semen_quality

    Collecting the sperm at home gives a higher sperm concentration, sperm count and motility, particularly if the sperm is collected via sexual intercourse. [36] If the semen sample is to be collected by masturbation, a specimen from the early stages of the ejaculate should be into a clean, unused, sealed collection cup.

  7. Oligospermia - Wikipedia

    en.wikipedia.org/wiki/Oligospermia

    Terms oligospermia, oligozoospermia, and low sperm count refer to semen with a low concentration of sperm [1] and is a common finding in male infertility. Often semen with a decreased sperm concentration may also show significant abnormalities in sperm morphology and motility (technically oligoasthenoteratozoospermia). There has been interest ...

  8. Azoospermia - Wikipedia

    en.wikipedia.org/wiki/Azoospermia

    Azoospermia is the medical condition of a man whose semen contains no sperm. [1] It is associated with male infertility, but many forms are amenable to medical treatment.In humans, azoospermia affects about 1% of the male population [2] and may be seen in up to 20% of male infertility situations in Canada.

  9. Asthenozoospermia - Wikipedia

    en.wikipedia.org/wiki/Asthenozoospermia

    Studies in mice have shown that DHA is essential for acrosome reaction and a DHA deficiency results in abnormal sperm morphology, loss of motility and infertility; which can be restored by dietary DHA supplementation. [5] Furthermore, the supplementation with DHA in humans has been reported to increase sperm motility.