The cervical os is the small opening at each end of the cervix. During ovulation, the cervical os opens to let sperm enter the uterus. Cervical stenosis is when the cervical os becomes too narrow or ...

When you're pregnant, you may learn about body parts you’ve never heard of before. Because let’s be honest: Even if your high school sex-ed class was detailed, how much do you really remember? During ...

The cervix connects the vagina to the uterus. It plays a major role in the menstrual cycle, fertility, pregnancy, and childbirth. Various health conditions, such as cervical polyps, can affect the ...