Women who have a cervical biopsy suggestive of CIN3 just don’t take the lesion deep enough as the biopsy usually takes the lesion tissue site. Biopsies are usually very accurate and there is a 5% chance of CIN3 developing into cervical invasive cancer. And the chance of conization being cervical cancer will usually be less than 5%, usually around 1%-2%. However, patients with CIN3 biopsy must undergo cervical conization to exclude cervical invasive cancer and prevent further development of cervical cancer, as well as pathological testing to make the cut edge completely clean. If the cut edge is not clean and may continue to develop into cervical invasive cancer, the patient needs to undergo total hysterectomy, so it is important to choose a reasonable surgical method for radical treatment under the guidance of a doctor.