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  2. Sperm motility - Wikipedia

    en.wikipedia.org/wiki/Sperm_motility

    Sperm motility is dependent on several metabolic pathways and regulatory mechanisms. The axonemal bend movement is based on the active sliding of axonemal doublet microtubules by the molecular motor dynein, which is divided into an outer and an inner arm. Outer and inner arm plays different roles in the production and regulation of flagellar motility: the outer arm increase the bea

  3. 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.

  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 quality - Wikipedia

    en.wikipedia.org/wiki/Semen_quality

    Although it is possible for men to father children into old age, the genetic quality of sperm, as well as its volume and motility, all typically decrease with age. [2] Advancing paternal age has been implicated in a number of possible health effects. One particularly well-studied connection is the link between advancing age and autism. For ...

  6. 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 ).

  7. 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.

  8. Category:Male infertility - Wikipedia

    en.wikipedia.org/wiki/Category:Male_infertility

    Pages in category "Male infertility" The following 3 pages are in this category, out of 3 total. This list may not reflect recent changes. ...

  9. Fertility testing - Wikipedia

    en.wikipedia.org/wiki/Fertility_testing

    Semen can be tested for sperm count, sperm motility, sperm morphology, pH, volume, fructose content, and acrosome activity. Checks are also made to identify undescended testicles and retrograde ejaculation, along with medical history, such as cancer treatment, radiation, drug use, etc.

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