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Causes Of Infertility In Men

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Semen is the milky fluid that a man’s penis releases during orgasm. Semen consists of fluid and sperm. The fluid comes from the prostate gland, seminal vesicle and other sex glands. The sperm is produced in the testicles. During orgasm a man ejaculates (releases semen through the penis).

The seminal fluid helps transport the sperm during ejaculation. The seminal fluid has sugar in it – sugar is an energy source for sperm.

Abnormal semen is responsible for about 75% of all cases of male infertility. Unfortunately, in many cases doctors never find out why. The following semen problems are possible:

  • Low sperm count (low concentration) – the man ejaculates a lower number of sperm, compared to other men. Sperm concentration should be 20 million sperm per milliliter of semen. If the count is under 10 million there is a low sperm concentration (subfertility).
  • No sperm – when the man ejaculates there is no sperm in the semen.
  • Low sperm mobility (motility) – the sperm cannot “swim” as well as it should.
  • Abnormal sperm – perhaps the sperm has an unusual shape, making it more difficult to move and fertilize an egg.

Sperm must be the right shape and able to travel rapidly and accurately towards the egg. If the sperm’s morphology (structure) and motility (movement) are wrong it is less likely to be able to reach the egg and fertilize it.

The following may cause semen to be abnormal:

  • Testicular infection
  • Testicular cancer
  • Testicular surgery
  • Overheating the testicles – frequent saunas, hot tubs, very hot baths, or working in extremely hot environments can raise the temperature of the testicles. Tight clothing may have the same effect on some people.
  • Ejaculation disorders – for some men it may be difficult to ejaculate properly. Men with retrograde ejaculation ejaculate semen into the bladder. If the ejaculatory ducts are blocked or obstructed the man may have a problem ejaculating appropriately.
  • Varicocele – this is a varicose vein in the scrotum that may cause the sperm to overheat.
  • Undescended testicle – one (or both) testicle fails to descend from the abdomen into the scrotum during fetal development. Sperm production is affected because the testicle is not in the scrotum and is at a higher temperature. Healthy sperm need to exist in a slightly lower-than-body temperature. That is why they are in the scrotum, and not inside the body.

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GradesFixer. (2019, January, 15) Causes Of Infertility In Men. Retrived September 18, 2019, from https://gradesfixer.com/free-essay-examples/causes-of-infertility-in-men/
"Causes Of Infertility In Men." GradesFixer, 15 Jan. 2019, https://gradesfixer.com/free-essay-examples/causes-of-infertility-in-men/. Accessed 18 September 2019.
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