Glycated antigen 125 of 78.8 U/mL may be due to malignant tumors such as gastric, ovarian and cervical and endometrial cancers, in addition, it can also be seen in some non-tumor patients. Therefore, the elevation of glycan antigen CA-125 does not necessarily indicate malignant tumor, but may also have other diseases, which need better clinical differentiation and diagnosis. 1. Gastric cancer: Glycoantigen 125 is a known biomarker and tumor marker, which is elevated in the blood of certain cancer patients, and the elevated phenomenon is manifested in patients with gastric cancer, which can be treated by chemotherapy, radiotherapy, surgical resection, etc. When the condition improves, Glycoantigen 125 will have a tendency to decrease. 2. Ovarian cancer, cervical cancer and endometrial cancer: Glycoantigen 125 is a kind of specific tumor marker, and the most researched one is ovarian cancer marker, the content of which is positive in women’s serum >40 U/mL, and positive in men’s serum ≥35 U/mL, it is recommended to go to the hospital in time to consult the doctor when Glycoantigen 125 is elevated. 3. Some non-tumor patients, such as endometrial inflammation, pelvic inflammatory disease, ovarian cysts, pancreatitis, hepatitis and cirrhosis of the liver, CA-125 index can also be elevated. Many diseases can lead to the elevation of glycan antigen 125, it is recommended to go to the hospital for appropriate examination, to clarify the cause of the disease and symptomatic treatment.