High Glyco Antigen 724 may be related to ovarian cancer, colorectal cancer, gastric cancer and other diseases, but the diagnosis should be based on the imaging examination and then treat the cause. Glycoantigen 724 is a tumor marker, the normal value is <6.7μg/L, if it is higher than this value, it is elevated, and its elevation is related to ovarian cancer and colorectal cancer, which can be examined through the combination of ca724 and ca125, which can improve the detection rate of ovarian cancer, and also can be combined with the CEA test, which can improve the detection rate of gastric cancer. In addition, it can be combined with abdominal CT, colonoscopy, gastroscopy and other examinations, and through pathological biopsy to confirm the diagnosis of the disease, if the diagnosis is confirmed, patients should be timely surgical treatment.