Coitus interruptus

Coitus interruptus.

This method consists in the removal of the penis from the vagina before ejaculation and is probably the oldest contraceptive.

The effectiveness of the method

Interrupted sexual act is a very inefficient method of contraception.

First, not every man able to feel the onset of ejaculation and self-control at this point.

Secondly, some sperm is released at the beginning of sexual intercourse. According to some, this "avant-garde", consisting of the most moving and sperm, which consequently makes the probability of conception is very high.

Furthermore, repeated sexual intercourse can enter the vagina sperm remaining on the walls of the male urethra after the first ejaculation. According to the statistics of 100 couples practicing interrupted coitus as a contraceptive method, a year pregnancy occurs in20-25 of them.

In addition to the unreliability of this method it should be noted harm to psychological and neurological point of view — the need to extract sexual term breaks the sensation of orgasm, as a man and a woman, which can lead to dissatisfaction with sexual intercourse. A lack of stimulation of the head of the penis during ejaculation may cause a violation of its mechanisms, leading to the development of various disorders (eg, retrograde ejaculation — Scored the semen into the bladder).

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