The surgery for carcinoma in situ of the uterine cervix is successful if there is no recurrence for more than 3 years after the surgery. The concept of carcinoma in situ of the uterine cervix is that the lesion has not broken through the basal layer and there is no interstitial infiltration. If it is a cervical carcinoma in situ that has not spread, the cancer can be effectively controlled by directly performing a hysterectomy through surgery. So if the healing is good after the surgery, in case the cancer cells have not spread, and after the surgery, as long as the body does not have recurrence again, theoretically it is cured. But there is no strict limitation or requirement on the specific time of how many years it takes to be cured.