Pregnancy Home > Mucus Plug
The mucus plug is the small amount of mucus that has sealed the cervix for nine months during pregnancy. It has been a barrier during the pregnancy to make sure that no bacteria is able to enter the uterus.
As labor approaches, the cervix thins and dilates, and the plug isn't large enough to fill the space anymore. The plug may come out all at once, or it may come out slowly in the vaginal discharge over a couple of days.