Ovarian cancer patients will cause the phenomenon of elevated carcinoembryonic antigen, which is mainly seen in gastric cancer, breast cancer, pancreatic cancer, colorectal cancer, as well as lung cancer, liver cancer, ovarian cancer and so on, which may lead to the phenomenon of elevated carcinoembryonic antigen. Therefore, when ultrasound or CT examination finds that there is a local tumor in the ovary with uneven echogenicity and mixed masses, malignant tumor is highly suspected, and when carcinoembryonic antigen is found to be elevated in tumor marker examination, ovarian cancer can be initially diagnosed, and it is recommended that surgery be performed as soon as possible for treatment. And it is better to do frozen pathological section during operation, according to the result of frozen pathological section, if it is ovarian cancer, it is recommended to enlarge the operation scope.