Orgasm Phases

The sexual response known as an orgasm is the point during sexual contact when tension is suddenly released in a series of involuntary and pleasurable muscular contractions. Although orgasm varies for males and females, the four phases of the orgasm are very similar:

1. Arousal
Arousal is sometimes referred to as feeling "turned on." It is a combination of mental arousal and physical changes. These physical changes include an increase in heart rate, rapid breathing, flushing, increased sensitivity in the genital area, erection of the penis, erection of the clitoris and swelling and lubrication of the vagina.

2. Plateau
During the plateau phase, sexual and muscular tension intensifies. The male usually ejaculates a small amount of sperm. It is possible to impregnate his partner with this release. Both male and females will feel increased sensitivity in the body and increased heart rate.

3. Orgasm
During orgasm, sexual pleasure peaks and sexual tension is released. The body stiffens and the muscles contract. Involuntary muscle contractions and spasms may occur in various parts of the body, including the legs, stomach, arms and back. For females, the muscles of the vagina relax and contract rapidly, as do the muscles of the uterus. The glands of the vagina (Bartholin's glands) discharge a watery secretion, which acts to lubricate the vagina. The male ejaculates sperm during this stage. Finally, endorphins (the chemical in the brain that causes feelings of happiness) are released. This stage lasts only a few seconds for males and females.

4. Resolution
This fourth stage is the period where there is a gradual return of the body to its baseline state. It is usually accompanied by a sense of warmth, pleasure and relaxation. This stage can be reached without orgasm. It also occurs when extreme sexual arousal ceases. Most males are unable to have another orgasm during this period of time, called a refractory period. The length of time in the refractory period depends on age and other factors. Many women return to the plateau phase after orgasm, allowing them to have a second or more orgasms very shortly after the first.

For more information on the female orgasm, click here.