CA724 single high clinical significance is not particularly large, need to be evaluated according to the patient’s specific situation, if necessary, repeat the examination on time. CA724 is a tumor marker commonly used in the clinic, and has certain clinical significance in gastrointestinal malignant tumors. However, elevated CA724 is also seen in benign diseases, such as pneumonia, pancreatitis, rheumatism, benign ovarian cysts, benign ovarian adenomas, breast diseases, etc. It is often associated with carcinoembryonic antigen CEA. It is often combined with carcinoembryonic antigen CEA to improve the sensitivity and specificity of diagnosing gastric cancer. Therefore, high CA724 alone cannot confirm the diagnosis of the disease, patients can consider reviewing the change of this index after one month, if this index continues to increase, other imaging tests should be performed to evaluate whether there is a malignant tumor. If the patient has a clear history of malignant tumors, this indicator is high, should pay attention to observe whether there is recurrence of metastasis phenomenon, if necessary, can be compared with the previous indicators, more clinical value.