The cervix is the lower third portion of the uterus which forms the neck of the uterus and opens into the vagina which is also called the endocervical canal. The narrow opening of the cervix is called the os. The cervical os allows menstrual blood to flow out from the vagina during menstruation. During pregnancy the cervical os closes to help keep the fetus in the uterus until birth.

My Infertility Journey: The Pre-IVF Testing Begins (Part 17)

With everything squared away to begin IVF, I set up an appointment with my new fertility clinic to get the pre-testing they said I needed. ... read more »

My Infertility Journey: Fun With My Cervix (Part 21)

As I mentioned before, the saline sonogram was actually pretty painful even though I was assured beforehand it would be painless. This was entirely due to me having a very tiny cervix that required dilation just to get the catheter to go in it. ... read more »

Why a Cervical Cerclage May Not Be the Answer

Cervical cerclage, a procedure in which a band of very thick thread is used to stitch the cervix closed much like a drawstring purse, may be recommended in cases of cervical incompetence. ... read more »