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 ...

The cervix changes in early pregnancy and throughout the menstrual cycle. Here's how to check your cervix for pregnancy. Medically reviewed by Renita White, MD Checking your cervix can help you ...

Dilation and effacement are terms that doctors and other birth professionals use to describe the changes in the cervix that are required for vaginal birth. Even if you've heard these terms, you may ...

Be proactive about your health Health screenings — physical exams, tests and procedures used to detect disease early — are important. Screening tests are designed to detect hidden disease ...