However, if ovarian cancer is detected at an early stage, it can be cured, and the cure rate is relatively high. Generally speaking, we use the five-year survival rate as an indicator of the cure rate, and we believe that the five-year survival rate for stage I ovarian cancer patients can reach 70% to 80%; for stage II epithelial ovarian cancer, through standardized treatment, the five-year survival rate can reach 50% to 60%; for stage III patients, the five-year survival rate decreases significantly, and may be around 30%; for stage IV patients, the survival rate is even lower. For stage IV patients, the five-year survival rate is even lower, probably not more than 10% after five years. Of course, there is also a clear relationship with the histological type and pathological stage of the patient’s ovarian cancer.