High glycan antigen CA724 may be caused by chronic gastritis, gastroenteritis and other diseases, or malignant tumors such as gastric cancer, ovarian cancer, etc. The former causes mostly less serious, while the latter causes more serious. Glycoantigen 724 is a tumor-associated glycoproteins that can be detected in the blood, and is a common tumor marker, which can be used to assist in the diagnosis of colorectal cancer, ovarian cancer, gastric cancer, pancreatic cancer and other diseases. Elevated glycan antigen 724 can be seen in colorectal cancer, pancreatic cancer, stomach cancer, pancreatic cancer, breast cancer, non-small cell lung cancer, ovarian cancer and other malignant tumors, which are more serious. In addition, elevated glycan antigen 724 can also be seen in gastroenteritis, chronic gastritis and other diseases, which can be recovered after standardized treatment and are not serious. In such cases, it can be recovered after standardized treatment and is usually not serious. It is recommended to go to the hospital to consult a doctor to determine the cause of the disease when there is a high level of glycan antigen CA724 antigen.