How is a colposcopic biopsy performed?
Generally, a colposcopic biopsy involves taking tissue samples from the cervix or vagina under colposcopic guidance. The specific procedure is as follows:
1. The patient empties her bladder and assumes the lithotomy position, followed by routine disinfection and draping.
2. A speculum is inserted to open the vagina and fully expose the cervix, after which the vaginal and cervical areas are disinfected.
3. The colposcope is inserted into the patient’s vagina to observe the internal condition of the cervix and vaginal walls.
4. A cotton ball soaked in 3%–5% acetic acid is applied to the cervical surface for one minute, allowing suspicious lesions to be identified based on color changes.
5. In areas that do not stain, a biopsy forceps is used to collect a small sample of cervical tissue, which is then sent to the pathology department for examination.
It should be noted that this examination is typically performed 3–7 days after menstruation ends, and sexual intercourse should be avoided for at least three days prior. If this examination is needed, it is recommended to visit a正规 hospital and undergo the procedure under the guidance of a qualified physician to prevent improper handling and potential harm to the body.