What is a cervical biopsy?
Nov 15, 2021
Source: Cainiu Health
Dr. Yan Ying
Introduction
The cervical smear (Pap smear) is currently the simplest and most effective diagnostic method widely used for cervical cancer screening. It involves collecting a small sample of cells from the cervix, placing them on a glass slide, and examining them under a microscope for any abnormalities. The specific procedure is as follows: after disinfecting the external genitalia, a vaginal speculum is inserted to expose the cervix; cervical mucus is gently removed from the surface of the cervix; then, a sample is collected from the squamocolumnar junction at the external os of the cervix for examination.
The cervix is a vital reproductive organ, and certain pathological changes may occasionally occur. To accurately determine the nature of such conditions, a cervical smear examination is often required—especially when severe cervical disease is present but symptoms are subtle or nonspecific, necessitating regular cervical screening. So, what exactly is a cervical biopsy? Let’s explore this further below.
What Is a Cervical Biopsy?
The cervical smear (Pap smear) is currently the simplest and most effective widely used method for screening cervical cancer. It involves collecting a small sample of cells from the cervix, smearing them onto a glass slide, and examining them under a microscope for any abnormalities. The specific procedure is as follows: after disinfecting the external genitalia, a vaginal speculum is inserted to expose the cervix. Excess mucus on the cervical surface is gently wiped away. Using a wooden, spatula-shaped scraper, cells are gently scraped in a circular motion along the squamocolumnar junction—the transitional zone between squamous and columnar epithelium—at the external os of the cervix. The collected cells are then subjected to cytological staining to assess cellular morphology and enable preliminary diagnosis.
Knowledge Extension: Important Considerations for Cervical Smear Examination
1. The optimal time to perform a cervical smear is between days 3 and 7 after menstruation ends, as the cervix is most open during this period, facilitating specimen collection. Performing the test during menstruation significantly increases the risk of gynecological infection due to bacterial invasion and may also lead to heavier menstrual flow and prolonged duration—potentially resulting in chronic anemia. Therefore, cervical smears must never be performed during menstruation.
2. Avoid using vaginal douches for at least three days prior to the examination. Additionally, abstain from sexual intercourse for at least 48 hours before the test, and refrain from using tampons, vaginal contraceptives, or related products.
3. Prior to undergoing a cervical smear, it is essential to evaluate for any existing vaginal inflammation. If active inflammation is detected, appropriate treatment should be completed first; only after resolution of the inflammation should the cervical smear be performed. Otherwise, excessive white blood cells and inflammatory cells in the specimen may compromise diagnostic accuracy.
That concludes our overview of cervical biopsy (smear) examination. We hope this information has been helpful. Wishing you a joyful life and good health!
