The early symptoms of ovarian cancer are not obvious, and the methods of detection are as follows: 1. With the growth of tumor and the appearance of ascites, patients can feel abdominal distension and can even feel the abdominal mass by themselves; 2. Performing routine gynecological examination, one can feel the pelvic mass; 3. Cancer cells can be found in ascites, which is the preliminary diagnosis basis, and the accuracy rate is about 10%-80%, if tumor cells are found in ascites. If tumor cells are found in ascites, they should be distinguished from tumors of the gastrointestinal tract; 4. Imaging examinations, such as CT, ultrasound and magnetic resonance examination, can reveal the size, location and surrounding tissues of the tumor; 5. Tumor index examinations, such as serum CA-125, the antigen associated with ovarian epithelial cancer, are obviously elevated in 80%-90% of epithelial cancers, especially in plasmacytoma, and as the disease improves or progresses, the index will decrease or increase. For example, serum CA-125, the antigen associated with ovarian epithelial cancer, is obviously elevated in 80%-90% of epithelial cancers, especially in plasma adenocarcinoma, and it will decrease or increase as the disease improves or progresses, so it is often used clinically as the judgment of ovarian cancer and efficacy; 6.