Can blood tests detect cervical cancer? What are the methods for diagnosing cervical cancer?

Although blood tests can detect tumor markers, this is only a reference indicator for judging cervical cancer and cannot be used as a basis for diagnosing cervical cancer. To confirm cervical cancer, cervical biopsy, cervical iodine test, colposcopy, fluorescence examination, tumor biochemical diagnosis and other tests can be performed, among which the cervical biopsy result is the most important basis for judgment.

Cervical cancer is a disease that seriously threatens women's health. The incidence of this disease is relatively high. However, because the symptoms are not particularly obvious in the early stages of the disease, they are often ignored. When abnormal symptoms appear, the disease has already developed to the middle and late stages. Therefore, regular screening for cervical cancer, early detection and early treatment of this disease can prolong survival. So, can blood tests detect cervical cancer?

1. Can a blood test detect cervical cancer?

Blood tests cannot confirm cervical cancer. Although tumor markers can be detected through blood tests, this is only a reference indicator. A preliminary judgment of cervical cancer can be made by considering tumor markers and the patient's clinical symptoms, but it cannot be confirmed. Because this test result is not the basis for diagnosing cervical cancer, pathological examination is the main basis for confirming cervical cancer.

2. Methods for diagnosing cervical cancer

1. Cervical biopsy

This is the main method for cervical cancer screening. By extracting some specimens from the suspected cancerous area and performing pathological examination, it can be determined whether cervical cancer has occurred.

2. Cervical iodine test

Iodine test is also a common method to determine whether cervical cancer occurs. Under normal circumstances, the cervical and vaginal squamous epithelium is rich in glycogen. If it is stained with iodine solution, it will appear brown or dark brown. If there is no color change after staining with iodine solution, it means that the epithelium lacks glycogen and there may be a lesion. Extracting specimens from the unstained area for biopsy can greatly improve the diagnosis rate.

3. Colposcopy

When cervical cancer is suspected, a colposcopy can be performed. This examination method cannot directly confirm the diagnosis, but it can assist biopsy to increase the diagnosis rate.

4. Fluoroscopy

If the lesion is cancerous, it absorbs more fluorescein and the lesion often appears dark yellow. If it is not cancerous, it absorbs less fluorescein and generally appears purple-blue. The change in color can also be used to determine whether cancer has occurred.

5. Tumor biochemical diagnosis

When cervical cancer is suspected, tumor biochemical diagnosis can also be performed. The values ​​of lactate dehydrogenase and hexokinase can be used to determine whether cervical cancer has occurred. When cervical cancer has already invaded, this test result indicates that the tumor may have metastasized, so it is helpful for clinical diagnosis.