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  2. Male infertility - Wikipedia

    en.wikipedia.org/wiki/Male_infertility

    The volume of the semen sample (must be more than 1.5 ml), approximate number of total sperm cells, sperm motility/forward progression, and % of sperm with normal morphology are measured. It is possible to have hyperspermia (high volume more than 6 ml) or Hypospermia (low volume less than 0.5 ml).

  3. Semen quality - Wikipedia

    en.wikipedia.org/wiki/Semen_quality

    A semen analysis typically measures the number of sperm per millilitre of ejaculate, and analyzes the morphology (shape) and motility (ability to swim forward) of the sperm (the typical ejaculate of a healthy, physically mature young adult male of reproductive age with no fertility-related problems usually contains 300–500 million spermatozoa ...

  4. Paternal age effect - Wikipedia

    en.wikipedia.org/wiki/Paternal_age_effect

    A 2001 review on variation in semen quality and fertility by male age concluded that older men had lower semen volume, lower sperm motility, a decreased percent of normal sperm, as well as decreased pregnancy rates, increased time to pregnancy and increased infertility at a given point in time. [55]

  5. Is your screen time tanking your sperm count? A urologist ...

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  6. What it’s really like to have a sperm test - AOL

    www.aol.com/news/sperm-test-140400191.html

    Don’t know what to expect? 7 things you should know before your first sperm test.

  7. Semen analysis - Wikipedia

    en.wikipedia.org/wiki/Semen_analysis

    A semen analysis (plural: semen analyses), also called seminogram or spermiogram, evaluates certain characteristics of a male's semen and the sperm contained therein. [1] [2] [3] It is done to help evaluate male fertility, whether for those seeking pregnancy or verifying the success of vasectomy. Depending on the measurement method, just a few ...

  8. XX male syndrome - Wikipedia

    en.wikipedia.org/wiki/XX_male_syndrome

    XX male syndrome, also known as de la Chapelle syndrome, is a rare intersex condition in which an individual with a 46,XX karyotype develops a male phenotype. [2] Synonyms for XX male syndrome include 46,XX testicular difference of sex development (or 46,XX DSD) [3] [4] [5] [6]

  9. Human reproduction - Wikipedia

    en.wikipedia.org/wiki/Human_reproduction

    Human sexual reproduction, to produce offspring, begins with fertilization. Successful reproduction typically involves sexual intercourse between a healthy, sexually mature and fertile male and female. [1] During sexual intercourse, sperm cells are ejaculated into the vagina through the penis, resulting in fertilization of an ovum to form a ...

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