Conical hysterectomy (conization) is a procedure in which a portion of the cervix is removed in a conical shape from the outside to the inside. According to the authoritative view, the number of conical excision performed in a hospital can somehow reflect its level of treatment for cervical cancer. However, some patients do not understand, thinking that it is going to become cancer, so why not just cut the uterus off, why suffer twice? But it cannot be done for at least two reasons: 1. The reason why it is called precancerous lesion means that it is not cancer after all. It’s just that if it is not treated, it will become cancerous after a period of time (3-8 years on average). Moreover, “cervical lesion” is still a problem of the “cervix” itself after all, unless it develops into advanced cervical cancer, which usually does not hurt the uterus. Therefore, in most cases, conization is sufficient and there is no need to remove the uterus. For precancerous cervical lesions in young women, if the uterus is removed, it is over-treatment! 2. For certain early stage cervical cancer (the technical term is called stage IA1, IA2, or IB1). If a hysterectomy is performed directly and it turns out to be stage IA1 cervical cancer, it is of course very lucky because total hysterectomy is just appropriate. But if unfortunately it is stage IA2 or stage IB1, it is a problem. Because in this case, hysterectomy alone is not enough, some tissue next to the uterus should also be removed (i.e., extended hysterectomy). At this point it is very difficult to perform further remedial surgery and very easily damaged. Therefore, in patients with colposcopic biopsy diagnosis of cervical intraepithelial neoplasia (i.e., CIN) grade 2-3, conization is usually required for a full evaluation or as treatment. For those with colposcopic biopsy reports of carcinoma in situ, no exclusion of infiltration, or unclear depth of infiltration, it is even more important to determine the depth of infiltration by conization.