The examination for ovarian cancer begins with an abdominal ultrasound, which can clarify the tumor's size, shape, cystic or solid nature, location, and its relationship with neighboring organs. If necessary, CT scans and MRI can be conducted for a clearer view. Next are tumor markers, which are essential in the diagnosis of ovarian cancer. Additionally, CT scans of the lungs and head, or MRI, and a complete blood count of bone can help rule out distant metastasis. The most critical part is the pathological diagnosis, as the definitive diagnosis of tumors primarily relies on pathology. We can obtain a clear pathological diagnosis through laparoscopy or exploratory laparotomy.