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- This article is about male ejaculation. For female ejaculation, see Female ejaculation. For the grammatical term, see Ejaculation (grammar).
Ejaculation is the process of ejecting semen from the penis, and is usually accompanied by orgasm as a result of sexual stimulation (which has previously caused an erection). It may also occur spontaneously during sleep (called a nocturnal emission), or due to stimulation of the prostate or, rarely, due to prostatic disease. Anejaculation is the condition of being unable to ejaculate.
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About
Impregnation
Normally, an erection is required for the penis to penetrate the vagina, and then ejaculation is required for emission of sperm, which can make a woman pregnant with a baby. However, any fluid that may dribble out of a male's penis when sexually stimulated may contain some sperm, and if any sperm enter a woman's vagina it is possible that she may get pregnant.
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Ejaculation facts
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- Average volume of semen per ejaculation: 2 to 6 ml (0.41 to 1.22 US teaspoons)
- Average number of times a man will ejaculate in his lifetime: 5,000
- Average total amount of lifetime ejaculate: 17 litres or 18 quarts
- Average number of calories in a teaspoon of semen: 7
- Average duration of orgasm: 17 seconds
- Average number of sperm cells in the ejaculate of a healthy man: 40 million to 600 million
- Distance sperm travels to fertilize an egg: 7.5-10 centimeters or 3-4 inches
- Sperm lifespan: 2.5 months from development to ejaculation
- Sperm lifespan after ejaculation: 30 seconds to 6 days depending on conditions
- Average speed at which semen is ejaculated: 28 mph
See also
- Aspermia
- Azoospermia
- Coitus interruptus
- Coitus reservatus
- Cum shot
- Delayed ejaculation
- Erection
- Female ejaculation
- Premature ejaculation
- Retrograde ejaculation
References