In terms of ovarian cancer screening, we first start with a gynecological examination, followed by a pelvic ultrasound of the adnexa uteri in gynecology. For patients who have given birth, it is best to perform a transvaginal ultrasound of the adnexa uteri. Additionally, blood tests are performed to check the ovarian cancer tumor marker CA125, which is a tumor marker with relatively high specificity and sensitivity, especially for ovarian epithelial cancer. For such types of ovarian cancer, the CA125 level generally shows a significant increase. Therefore, during screening, this tumor marker can be checked in conjunction with a pelvic ultrasound to screen for the disease.