The normal value of CA724 is usually between 0-6.7 μg/L. A value of CA724 of 65 μg/L and no problem with gastroenteroscopy may be transient and generally not serious. If there are persistent high values on multiple retests, malignancy is suspected and is more serious. CA724 is a non-specific tumor marker. When recently eating improperly, smoking and drinking, taking supplements or health care products, or taking drugs such as colchicine, CA724 single high may be a transient elevation, this is generally not serious, and it is recommended to review regularly. However, if there is a persistent elevation, we should suspect that there may be malignant tumors in the body. It may be related to ovarian cancer, breast cancer and pancreatic cancer and other malignant tumors. This is a more serious situation and prompt medical attention is recommended for further examination to identify the cause. Elevated CA724 alone does not necessarily indicate that there is a tumor in the body, and it needs to be combined with other pathological tests, imaging tests and other comprehensive examination means to make a comprehensive judgment in order to clarify the cause of the disease.