What are the disadvantages of Coitus Interruptus?
This method requires self-control on the part of the man, who must recognize impending orgasm and resist the urge to pursue coital movement. He must withdraw the penis in time to prevent the ejaculate from coming into contact with the vagina or vulva. The couple is not protected from sexually transmitted diseases including HIV. Examinations of the pre-ejaculate of HIV-infected men have revealed the presence of HIV-infected cells in some cases. There is also a theoretical risk that the pre-ejaculate may contain spermatozoa, therefore making conception possible even if withdrawal is achieved prior to ejaculation.
