what is “washed” sperm ?
In nature, during intercourse sperm are deposited in the vagina and then they have to swim through the cervical mucus. In IUI method, as cervix is by passed there are many sperm available at the site of fertilization. As sperm are placed in uterine cavity, they have to be washed first, to get rid of any dead cells, bacteria and seminal fluid. There are different method for the washing of sperm which takes around 1 hour , so it is always advisable to produce semen before 1½ hour of scheduled IUI.
