What are the diagnostic methods for cervical cancer?

In recent years, uterine cancer has become one of the major diseases that endangers society and human health, and it has brought great pain and distress to humans. In order to reduce the incidence of uterine cancer, we should master the diagnosis methods of cervical cancer. The following experts will introduce you.

(I) Cervical smear cytology examination

It is the main method for detecting cervical precancer lesions and early cervical cancer. However, attention should be paid to the correct sampling site and careful microscopic examination, as there may be a 5% to 10% false negative rate. Therefore, it should be combined with clinical conditions and regular examinations to screen with this method.

(II) Iodine test

Normal cervical or vaginal squamous epithelium contains abundant glycogen, which can be dyed brown by iodine solution, while endocervical columnar epithelium, cervical erosion and abnormal squamous epithelial areas (including squamous metaplasia, atypical hyperplasia, carcinoma in situ and invasive carcinoma areas) do not have glycogen, so they are not colored. In clinical practice, after exposing the cervix with a vaginal speculum, the surface mucus is wiped off, and the cervix and fornix are smeared with iodine solution. If an abnormal iodine-negative area is found, a biopsy can be taken from this area for pathological examination.

(III) Biopsy of cervix and endocervical canal

When the cervical smear cytology examination is grade III to IV or above, but the cervical biopsy is negative, four-point biopsies should be taken at 6, 9, 12 and 3 o'clock at the junction of the cervical squamous and columnar parts, or multiple tissues should be taken from the unstained area of ​​the iodine test and the suspected cancerous site, and sliced ​​for examination, or the endocervical canal should be scraped with a small scraper and the scraped material sent for pathological examination.

(IV) Colposcopy

Colposcopy cannot directly diagnose cancer, but it can help select the biopsy site for cervical biopsy. According to statistics, if a biopsy can be taken with the assistance of colposcopy, the diagnostic accuracy of early cervical cancer can reach about 98%. However, colposcopy cannot replace scraping cytology and biopsy, nor can it detect lesions in the cervical canal.

The above is the method of diagnosing cervical cancer. Expert Tips: If you have symptoms of disease, do not delay diagnosis and go to a regular hospital for treatment in time to avoid delaying the disease and causing serious consequences. If you have other questions, please consult our online experts or call for consultation. I wish you health and happiness!

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