CA724 is a marker for the detection of gastric and digestive tract tumors. Glycoantigen 724 is a tumor-associated glycoproteins that can be detected in blood (or other body fluids) and is a common tumor marker test, but CA724 is a non-specific tumor marker. Normal value: 0-6.7ug/L (Normal value may vary due to the influence of instrument and method of the testing organization). It is mainly used for the auxiliary diagnosis of gastric cancer, ovarian cancer, colorectal cancer, pancreatic cancer, non-small cell lung cancer, breast cancer, etc., and used to monitor the therapeutic effect of malignant tumors, whether recurrence, prognosis, etc. Gastrointestinal inflammation can also cause CA724 to be elevated. If the patient has a mild elevation of CA724 and other tests are not abnormal, the test can be repeated after 3 months. If CA724 is significantly elevated, it is recommended that the patient go to the hospital in a timely manner for relevant examinations to detect the presence of tumors and other related diseases.