A single elevation of CA724 of 12.1 μg/L does not need to be overly concerned, and imaging, pathology and other related tests need to be improved to help clarify the cause of the elevation. As a tumor-associated glycoprotein, CA724 is commonly used as a marker for gastrointestinal and ovarian tumors. The normal reference value of CA724 is <6.7μg/L, and different hospitals may have slightly different testing standards. Elevated CA724 can be seen in malignant diseases such as ovarian cancer, gastric cancer, breast cancer, etc. It can also be elevated in benign diseases such as chronic gastritis, pancreatitis, cholecystitis, colitis, etc. Therefore, a single elevation of CA724 can be used as a marker for gastrointestinal and ovarian tumors in clinical practice. Therefore, there is no need to be overly nervous about the elevation of CA724, and it is recommended to repeat the test and improve the imaging and pathology examination in order to clarify the nature of the disease and carry out targeted treatment.