Retrograde ejaculation refers to the movement of seminal fluid backwards (retrograde) into the bladder instead of forward (antegrade) through the urethra during ejaculation. This is caused by the inability of the bladder neck to close tightly enough during ejaculation. In men with retrograde ejaculation, the post-orgasm urine can be collected and assessed for the presence of sperm. If sperm are present, the high-quality sperm can be isolated and, if adequate, can be used for ART procedures (11,12,13), as well as IUI, with great success. (Read full publication)
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