What are the correct diagnostic methods for cervical precancerous lesions?

Clinical data show that the cure rate of mid- to late-stage cervical precancerous lesions is quite low, so timely detection and diagnosis are very important for patients with cervical precancerous lesions. How do you determine whether you have cervical precancerous lesions? How do you choose among the many diagnostic methods for cervical precancerous lesions? The following editor will analyze the diagnostic methods of cervical precancerous lesions for you.

1. Colposcopy diagnosis: Colposcopy cannot directly confirm whether a person has cancer, but it can assist in the diagnosis of cervical precancerous lesions through biopsy. According to statistics, the diagnosis rate of early cervical precancerous lesions is as high as about 98% when biopsy is taken with the assistance of colposcopy.

2. Cervical smear cytology diagnosis: This method can detect precancerous lesions and early cervical precancerous lesions. Because there is a false negative rate of 5%-10%, patients need regular diagnosis.

3. Diagnosis of cervical and endocervical canal biopsy: If the cervical scraping cytology diagnosis is grade III to IV, but the cervical biopsy is negative, multiple tissues should be taken for pathological diagnosis.

4. Iodine test: Normal cervical and vaginal squamous epithelium are rich in glycogen and can be stained brown by iodine solution. However, cervical erosion and abnormal squamous epithelial areas (including atypical hyperplasia, carcinoma in situ and invasive carcinoma) do not have glycogen and will not be stained.

5. Cervical cone resection: When the biopsy is uncertain whether there is invasive cancer, cervical cone resection can be performed. After the diagnosis of cervical precancerous lesions is confirmed, lymph node angiography, cystoscopy, and colonoscopy can also be performed according to the specific situation.

Warm reminder: Cervical precancerous lesions start with atypical hyperplasia of the cervical epithelium, and gradually develop into invasive cancer through carcinoma in situ. The development process takes 5 to 10 years or longer, so there is ample time for secondary prevention (i.e. early detection, early diagnosis, and early treatment). Timely and effective detection and treatment of precancerous lesions can significantly reduce the occurrence of cervical precancerous lesions.