Cervical conization includes LEEP (cervical cerclage) and CKC (cold knife conization of the cervix). Regardless of the type of surgery, regular post-operative check-ups are necessary. Why is a postoperative review necessary? Generally, patients who choose LEEP and CKC procedures are those with high-grade cervical intraepithelial neoplasia (CIN2-3), which is caused by human papillomavirus (HPV) infection. Although about 1/3 of patients are HPV-negative after surgery, these patients are still in the high-risk group for HPV infection. The chance of re-infection with HPV after surgery is still higher than in the general population. In addition, even if patients with negative margins have a residual cervix, they are still at risk of developing the disease. Therefore, regular review is necessary. How often is the review appropriate? Generally speaking, within one month after the operation, it is best to review once a week, the purpose is to observe the surgical wound for infection, blood seepage and so on. The purpose is to observe whether the surgical wound is infected or oozing blood, etc., so that timely detection and treatment can reduce the chance of postoperative complications. In the second month after surgery, the main purpose is to check every two weeks to see if the surgical wound is scabbing off, and whether there is secondary infection, bleeding and so on. If the cervical wound is well healed at the end of the second month, HPV test can be done to find out whether there is still HPV infection, if so, it can be treated with topical interferon, if not, it will be reviewed one month later. At the end of the third month after surgery, TCT (cervical liquid-based cytology) can be performed. If TCT: NILM/HPV (-), it can be repeated after one year; if TCT: NILM/HPV (+), it can be repeated after three months; if TCT is abnormal, colposcopy + ECC (cervical canal curettage) is needed. Do I still need to be retested if the TCT and HPV are fine after retesting? No. It is necessary to review the test, but the interval of review has been extended to 2-3 years.