Carcinoembryonic antigen 11ng/ml is not very high. The normal value of carcinoembryonic antigen does not exceed 6.0ng/ml.Carcinoembryonic antigen is used to detect the presence of tumors in the body and to determine the efficacy of tumor treatment. Carcinoembryonic antigen is widely used to determine the efficacy and prognosis of colorectal cancer, breast cancer and lung cancer. Carcinoembryonic antigen 11ng/ml is not particularly high, don’t worry too much, you can check further according to your own health condition. If the serum test value is abnormally high or several times or even hundreds of times higher than the normal value, malignant tumors, such as colorectal cancer, gastric cancer, pancreatic cancer, gallbladder cancer, etc., are highly suspected. However, if the serum value is slightly or only a few times higher than normal, it may be caused by inflammatory diseases, such as proctitis, pancreatitis, cholecystitis, etc., and the carcinoembryonic antigen will also be elevated to different degrees. Carcinoembryonic antigen 11.0ng/ml is higher than normal value, it is recommended to further clarify the diagnosis, and after diagnosis, you can go to regular hospitals for rechecking regularly, and follow the doctor’s instructions to carry out targeted treatment.