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A 1992 World Health Organization report described normal human semen as having a volume of 2 mL or greater, pH of 7.2 to 8.0, sperm concentration of 20×10 6 spermatozoa/mL or more, sperm count of 40×10 6 spermatozoa per ejaculate or more, and motility of 50% or more with forward progression (categories a and b) of 25% or more with rapid ...
The story was written by a "prescientific mind" that considered the child to be contained in the sperm the same way a plant is contained in its seed. [14] [15] Onan's offense was therefore the deliberate destruction of human life. [14] Leviticus 15:16-17 says that a man who has an emission of semen should wash and be ceremonially unclean until ...
Human sperm stained for semen quality testing. Sperm quantity and quality are the main parameters in semen quality, which is a measure of the ability of semen to accomplish fertilization. Thus, in humans, it is a measure of fertility in a man. The genetic quality of sperm, as well as its volume and motility, all typically decrease with age. [17]
Males from India had a 30.3% decline in sperm count, 22.9% decline in sperm motility, and a 51% decrease in morphology over a span of a decade. Doctors in India disclosed that the sperm count of a fertile Indian male had decreased by a third over a span of three decades. [ 80 ]
Sperm count declines with age, with men aged 50–80 years producing sperm at an average rate of 75% compared with men aged 20–50 years. However, an even larger difference is seen in how many of the seminiferous tubules in the testes contain mature sperm: In males 20–39 years old, 90% of the seminiferous tubules contain mature sperm.
Collecting the sperm at home gives a higher sperm concentration, sperm count, and motility, particularly if the sperm is collected via sexual intercourse. [35] If the semen sample is to be collected by masturbation, a specimen from the early stages of the ejaculation should be placed into a clean, unused, sealed collection cup.
In Brahmacharya in Hinduism, Virya also refers to semen in a male and it is considered to be the 'vital fluid'. Loss of Virya from the body is avoided in Brahmacharya. Loss of Virya from the body is avoided in Brahmacharya.
The discussion of the non-procreative emission of semen came in the redactorial strata; the tannaitic sources make no mention and only discuss arousal. [21] The Shulchan Aruch [23] and Kitzur Shulchan Aruch [24] state that wasting sperm is considered to be a sin greater than any sin in the Torah.