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The Orgasm

An orgasm, also known as a sexual climax, is a pleasurable psychological or emotional response to prolonged sexual stimulation. It is often accompanied by a notable physiological reaction, such as ejaculation, blushing or spasm.

General

Both males and females can experience orgasm, but the exact response varies across sex. Generally speaking, orgasm is the third stage of four in the human sexual response cycle, which is the currently accepted model of the physiological process of sexual stimulation. It is usually thought of as being the most rewarding part of having sex, even though a sizable minority reports liking sex for its other qualities.

Shared physiology

Orgasm is the conclusion of the plateau phase of the sexual response cycle, shared by males and females alike. During orgasm, both males and females experience quick cycles of muscle contraction in the lower pelvic muscles, which surround both the anus and the primary sexual organs.

Orgasms in both men and women are often associated with other involuntary actions, including vocalizations and muscular spasms in other areas of the body. Also, a generally euphoric sensation is associated with orgasm.

Afterwards, orgasm generally causes perceived tiredness, and both males and females often feel a need to rest. This is often attributed to the release of endorphins during orgasm causing relaxation and drowsiness, but can also be due to the body's need for a short rest after a bout of vigorous physical activity.

Human male orgasm

In a human male orgasm, there are rapid, rhythmic contractions of the prostate, urethra and the muscles at the base of the penis, which force stored semen to be expelled through the penis's urethral opening. This is referred to as ejaculation. The process usually takes from 3 to 10 seconds. The process is usually, but not always, extremely pleasurable. Orgasm is generally induced by direct stimulation of the penis. Some men experience heightened orgasm by direct stimulation of the prostate through the perineum, or with a finger or dildo inserted in the anus.

Note that it is possible to have an orgasm without ejaculation, dry orgasm, or to ejaculate without reaching orgasm. Some men report that the ability to consciously separate orgasm and ejaculation has allowed them to achieve multiple orgasms.

Following ejaculation, a refractory period occurs during which a man cannot have another orgasm. This period can be anywhere from less than a minute to over half a day, depending on age and other individual factors. A very few cases have been reported of men who appear to have no refractory period at all.

Post-operative female-to-male transsexual men (after having undergone metoidioplasty or phalloplasty by a qualified surgeon) generally experience orgasm in the same way, except that those who have had phalloplasty have a pump installed to create an erection, as the neopenis (with either surgical technique) has limited natural erection capability.

Orgasmic dysfunction

The inability to have orgasm is called anorgasmia, or inorgasmia. In situations where orgasm is desired, anorgasmia is mainly thought of as being caused by an inability to relax, or 'let go'. It seems to be tightly associated with performance pressure in intercourse, and an unwillingness to pursue pleasure as such, as separate from the other person's satisfaction.

For a variety of reasons, some people choose to fake an orgasm.

Information made available through Wikipedia and the GNU Free Documentation License.

Related Terms:

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