Do white blood cells kill sperm?
do white blood cells try and stop sperm entering the uterus? if so why do they?
- Anonymous1 decade agoFavorite Answer
An IUD works by stopping sperm from reaching the egg. It does this by releasing copper into the body, causing an increase in white blood cells in the cervix, which kill sperm in the cervix, womb or fallopian tube. The IUD has one or two soft threads on the end that come through the opening at the neck of the womb (cervix) into the top of the vagina.
IUDs may also make it harder for the egg to travel along the fallopian tubes and prevent it implanting in the womb.
Sperm are foreign and antigenic to the female.