Glycoantigen 724 is a tumor marker, a tumor-associated glycoprotein antigen that is a marker for gastrointestinal and ovarian tumors. Usually, elevated glycoantigen 724 can be seen in ovarian, colorectal, gastric, breast or pancreatic cancers. Therefore, if there is a 5-fold increase in glycoplasma 724, further screening with fecal occult blood, gastroscopy, colonoscopy, whole abdomen ultrasound, or even whole abdomen CT is needed to rule out the presence of these tumors. In addition, the specificity of combined test of glycoantigen 724 and CA125 for the diagnosis of ovarian cancer can be as high as 100%. Therefore, if glycoconjugate antigen 724 is 5 times higher, CA125 can be checked at the same time. If it is also significantly higher, it may be ovarian cancer and further ultrasound and other tests are needed to confirm the diagnosis. In addition to this, glycoantigen 724 is elevated in about 3.5% of normal people, and about 6.7% of patients with benign gastrointestinal disease also have elevated glycoantigen 724. Therefore, after the relevant examination to exclude malignant tumor, for glycogen antigen 724 elevated 5 times can be regularly reviewed to observe the dynamic changes. Pay attention to more rest, avoid strain, keep happy, give high nutrition, high protein diet, avoid intake of spicy and stimulating food, at the same time, should participate in physical exercise to enhance the body resistance.