Semen & Ejaculation Facts
Male ejaculation is the ejection of semen from the penis as part of the male sexual response cycle. Ejaculation is usually preceded by physical stimulation, stimulation of the prostate or, if during sleep, wet dreams.
While ejaculation and orgasm generally occur at the same time it is possible to have an orgasm without ejaculating by using exercise techniques such as Kegals and Tantra practices.
Masters and Johnson, categorize ejaculation as a part of phase three, the orgasm phase, out of a four phase male sexual response cycle. While ejaculating does trigger orgasm the reverse is not necessarily true as it is possible to orgasm without ejaculating.
This distinction is an important awareness for men looking for tips on how to enhance their ejaculation, orgasms and general control of sexual function.
Also of importance for men seeking to improve their ejaculations are the stages of the ejaculation and resolution phases, as highlighted below first seperately and then in the words of Masters and Johnson.
The Two Stages of Ejaculation:
Male Sexual Anatomy
In this stage, two ducts named the vas deferens contract to shoot sperm from its storage location to the ampullae which is at the top of the vas deferens. Next sperm moves through the ejaculatory ducts and combines with fluids from several other organs, including the prostate, to form semen, or ejaculate. This is the first part of ejaculation. Generally, most men report the start of the emission stage as a point of "no turning back."Formal Ejaculation:
The Semen/Ejaculate is then ejected through the urethra by rhythmic muscle contractions. The formal ejaculation is part of the orgasm and can last any where from a few seconds to one minute.
How quickly the male body reproduces semen and is able to achieve a second erection depends on several factors. The ability to have multiple ejaculations declines almost immediately after puberty so how often a man can ejaculate decreases to about one ejaculation every one to two hours, for adult men. In some cases there are men who can have two, three or more ejaculations in one hour; this is not the norm. However, it is possible to achieve multiple male orgasms in one hour or less and, of course, it is also possible to have a second erection, though usually not within two to five minutes of Formal Ejaculation. Overall physical health, libido and the practice of certain techniques/exercises can affect the ability and speed for a second erection.
Average Ejaculation Distance: 7-10 inches(Can be up to 3ft)
Average Ejaculation Volume: 1.5 to 5 milliliters
The traditional male sexual response cycle described below was first studied and developed in the 1950-60s by Masters and Johnson. It is important to note that normal male sexual response can vary a great deal from their description. Their categorization may best be thought of as a very general frame work for understanding male ejaculation and orgasm. For those looking to enhance their ejaculation, orgasm and sexual experience the information is well worth reading.
Masters and Johnson: Male Sexual Response CyclePhase 1 of the Male Sexual Response – Excitement
In response to sexual stimuli (whether psychological in the form of sexual thoughts or fantasies, or physical in the form of physical stimulation) the process of vasocongestion occurs, where more blood flows into the penis than is flowing out, and the result will usually be that a man will get an erection. How long this takes, and what the erection
feels like will differ from man to man, and for the same man over time.
Physical changes may include:
-There are also changes in the scrotum and testes, with the testes increasing in size and the scrotum elevating, coming closer to the body.
-The skin may become flushed; men may experience heightened sensitivity in parts of their body, like the nipples.
-Some increase in heart rate, blood pressure, and muscle tension.
With continued sexual stimulation this phase represents the time between the initial arousal and excitement, up until orgasm. For many men the plateau phase is very short, but this is the phase that men can extend as a way of controlling premature ejaculation.
Physical changes during this phase may include:
-An increase in the size of the head of the penis, and the head may also change color, becoming purplish.
-The Cowper’s gland secretes fluid, often referred to as pre-cum, which comes out of the tip of the penis.
-The testes move further in towards the body, and increase in size.
-There may be a sex flush, muscle tension, increase in heart rate and rising blood pressure.
Masters and Johnson further divided the orgasmic phase for men into two separate stages.
In the first stage: -Contractions in the vas deferens, seminal vesicles, and the prostate causes seminal fluid (“come” or ejaculate) to collect in a pool at the base of the penis, in the urethra. This collection is usually felt as a “tickling” type sensation.
In the second stage of the orgasmic phase:
-Contractions of muscles occur in a “throbbing” manner around the urethra, and propel ejaculate through the urethra and out of the body.
-These contractions (which occur at different speeds, and in different amounts) are usually what are experienced as highly pleasurable feelings of release.
Resolution phase refers to the period of time immediately following an orgasm, when the body begins to return to its “normal” state. This phase includes:
-The loss of the erection as the blood flows out of the penis, which happens in two stages over the period of a few minutes.
-The scrotum and testes return to normal size.
-A general feeling of relaxation.
There is also a refractory period following ejaculation when a man is physically incapable of getting another erection. This period may be from a few minutes to much longer. It seems to be longer in older men, although there are many possible individual differences.Source: Masters, W.H. & Johnson, V.E. Human Sexual Response New York: Bantam Books, 1980.