In clinical settings, it is common for ovarian cancer to present with significant ascites. Some patients initially seek medical attention due to symptoms related to large volumes of ascites, and then ovarian cancer is diagnosed. Such cases are generally at a more advanced stage, and their treatment is predominantly chemotherapy. Ovarian cancer patients tend to be relatively sensitive to chemotherapy; only when chemotherapy controls the cancer cells can the ascites be managed. Of course, symptomatically, a peritoneal drainage tube can be placed to drain the ascites, and then local intraperitoneal chemotherapy drugs can be infused. This, combined with systemic intravenous chemotherapy, controls the ovarian cancer and manages the ascites.