Anal sex is a non-traditional type of sexual intercourse where penis is inserted into anus or rectum in order to achieve sexual satisfaction and can be performed in male-female as well as in male-male intercourse. Anal sex has been a taboo for a long time, which is a natural response from the society to something that is not conventional, but that made it even more desirable and intriguing. Both men and women possess anatomical structures that can provide sexual pleasure during anal sex. In men, prostate is located right in front of the rectum, so the pressure on it through the anal wall can produce even greater satisfaction than penile stimulation. There are many misconceptions related to anal sex among general population.
Anal sex and pregnancy
Anus and rectum are ending parts of digestive tube and they are completely separated from female genital organs. In other words, a woman can only get pregnant if sperm gets in the vagina. There is however one rare medical condition called rectovaginal fistula which represents the pathological way between vagina and rectum. So in that case, spermatozoids can get from rectum to vagina. Some women still state that they got pregnant after anal sex. This is due to fact that couples rarely perform only anal sex, but it is more often combined with vaginal sex. What they don't know is that it is not necessary to ejaculate into the vagina in order to get pregnant. In fact, about 1000 spermatozoids are ejected from penis during sex before ejaculation, and only 1 of them is required to fertilize the ovum.
Risks related to anal sex
Although it is safe concerning pregnancy issues, anal sex carries significantly higher risks than vaginal sex when it comes to infections and injuries. Anus is not anatomically designed for penetration, so it doesn't have proper lubrication required for sexual activity. That can cause injury of mucosa, bleeding and scaring.
Additionally, rectum and anus are full of bacteria that can cause infection in some cases. HIV infection, hepatitis B and C, and other STDs are more easily transmitted during anal sex than during vaginal sex due to less efficient barrier and the lack of protective agents, as well as due to microinjuries of anal and rectal wall.
Repetitive performance of anal sex can produce weakness of anal sphincter - circular muscle designed to retain feces.
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