Cervical Examination and Dilatation

Cervical dilatation, or the opening of the cervix, is a key indicator of labor progression in pregnant individuals. The cervix, the lower part of the uterus, typically remains closed until labor begins. During labor, it gradually dilates, allowing the baby to pass through the birth canal.

Assessment Methods

Accurate assessment of cervical dilatation requires a clinical examination performed by a trained healthcare professional. Self-assessment is not reliable.

Vaginal Examination

A vaginal examination involves the insertion of two fingers into the vagina to assess the cervix's consistency, position, and dilatation. The examiner palpates the cervical opening to determine its diameter, measured in centimeters.

Digital Examination

This is the most common method for assessing cervical dilatation during labor. The examiner uses their fingers to assess the degree of opening.

Stages of Cervical Dilatation

Dilatation is typically measured in centimeters, ranging from 0 cm (completely closed) to 10 cm (fully dilated), signifying the completion of the first stage of labor.

Stages of Labor

The process of labor is divided into three stages, with cervical dilatation a defining characteristic of the first stage. The progression of dilatation varies between individuals and pregnancies.

Factors Influencing Dilatation

Several factors influence the rate and progression of cervical dilatation including, but not limited to, the strength and frequency of uterine contractions, the position and presentation of the fetus, the size and shape of the maternal pelvis and prior obstetric history.

Medical Considerations

It is crucial to understand that attempting self-assessment of cervical dilatation is not recommended and could be harmful. Reliable assessment requires a trained healthcare professional's expertise and specialized tools. Any concerns regarding labor progression or cervical changes should be addressed promptly with a medical provider.