The use of cancer embryo antigen in patients with gallbladder cancer has certain reference value, but it is not absolute.

Patients with gallbladder cancer typically show a significant increase in embryonic antigen. Gallbladder cancer is difficult to diagnose early as it generally does not show specific symptoms. Some patients may experience mild discomfort in the upper right abdomen, but this is often overlooked or misdiagnosed as other diseases, such as chronic gastritis.

Therefore, once diagnosed with gallbladder cancer, it is usually already at a middle to late stage. Although the cancer embryo antigen in tumor marker tests of gallbladder cancer patients can be elevated, this is not absolute. Therefore, when discomfort in the upper right abdomen occurs, further comprehensive examinations like color ultrasound, CT, and other related tests are necessary to differentiate it.