Undetected cervical cancer can be checked by other methods such as biopsy, and can also be observed through regular follow-up. Cervical cancer is a malignant tumor which is common among women and caused by various factors such as heredity and human papillomavirus infection, etc. Clinical manifestations such as irregular vaginal bleeding, contact bleeding, abnormal vaginal secretion, and pain can be seen after contracting the disease. If you suspect that you have cancer, you can go to the hospital for checkups, laboratory tests, colposcopy and other methods. If cancer is not found, histopathologic examination can be used to make a clear diagnosis. In addition, if the results of all tests are negative, the patient may not be suffering from cervical cancer; in this case, the patient can be followed up regularly to observe the changes in her condition and detect the lesions in time.