Cervical biopsy refers to a biopsy of the cervix, a small piece or pieces of tissue taken from the cervix for pathological examination to make a clearer diagnosis. In cases of suspicious cancerous lesions of the cervix, suspicious cancerous cells in cervical smear, or suspicious specific inflammation, cervical biopsy can be done to confirm whether a woman has cervical cancer. Cervical biopsy is a more accurate and reliable method, and is also the gold standard for cervical cancer diagnosis. For female patients, whether they have early stage cervical cancer or advanced cervical cancer, cervical biopsy is necessary to determine the type of tumor cells and the degree of cell differentiation. The examination method is also relatively simple. The vagina is opened with a dilator, the cervix is exposed and then sterilized, a small piece or pieces of sample tissue is taken from the cervix and put into a special liquid for preservation, and then sent to the pathology department for pathological analysis such as sectioning and staining, and the results can be obtained in 3-5 working days. Cervical biopsy is also a confirmatory test for cervical cancer screening. If TCT is done and suspicious cancer cells are found, then cervical biopsy can be used to confirm the diagnosis, and it can also classify cervical cancer to determine whether it is in situ cancer or other adenocarcinoma, which can also provide great help to clinicians in formulating treatment plans.