What tests should be done to determine whether there is cervical precancerous lesions?

Cervical cancer is a malignant tumor of the female reproductive organ. This disease is very common in our daily life. It has a high incidence rate and a high mortality rate. These are the characteristics of this disease. When most patients seek medical treatment, their condition is often in the late stage, which makes effective treatment very difficult. So today we will introduce the clinical examination and diagnosis methods for cervical precancerous lesions:

The main methods of cervical cancer screening are:

1. 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 help of colposcopy, the diagnostic accuracy of early cervical cancer can reach about 98%. However, colposcopy cannot replace scraping cytology and biopsy because it cannot detect lesions at the squamous-columnar junction or extending into the cervical canal.

2. Cervical photography: A 10mm microscope with a 35mm camera and a 50mm extension ring is used to form a camera. The image is projected onto a 3.3m wide screen and observed from a distance of 1m. The squamous-columnar junction is fully displayed. If there is no abnormality, it is negative. If an abnormality is found, it is suspicious. If no squamous-columnar junction is found, it is unsatisfactory.

3. Fluorescence examination: It uses the mechanism that cancerous tissue and normal tissue absorb different amounts of fluorescein and display different colors to diagnose whether there is cancer. Cancerous tissue absorbs more fluorescein, and the fluorescence produced is stronger than that of normal tissue and appears dark yellow, while normal tissue appears purple-blue.

4. Tumor biochemical diagnosis: Clinical research by scholars has found that in patients with cervical cancer, lactate dehydrogenase and hexokinase are significantly increased, especially in those with infiltration, which is helpful for clinical diagnosis.

5. Cervical and endocervical canal biopsy: All clinical examinations of the cervix are important parts of diagnosis, but biopsy is the most reliable basis for diagnosing cervical cancer.

Through the above introduction, we have learned about some clinical diagnosis and examination methods of cervical cancer. Cervical cancer belongs to the category of malignant tumors. Once symptoms appear, it is best to go to a regular hospital for examination and treatment in time. There are many methods of diagnosis and examination. The specific selection and use should be decided by the doctor according to the needs of the patient's condition.