Carcinoembryonic antigen 59μg/L is elevated, it is recommended to carry out stool routine, colonoscopy, gastroscopy, chest X-ray, etc. If there is a tumor, surgery, radiotherapy and chemotherapy treatment are needed, if it is hepatitis, tuberculosis and other chronic diseases, active treatment of primary diseases is needed, and if there is no disease, it is necessary to monitor regularly. Carcinoembryonic antigen, CEA for short, normal reference value <2.5μg/L, CEA59μg/L is elevated, but because CEA is a non-specific tumor marker, expressed in a variety of tumors and benign diseases, the specific reasons need to be clarified according to the patient's symptoms and other tests. 1. Tumor diseases: CEA is mostly indicative of digestive tract tumors, and can also be seen in lung cancer, breast cancer, etc., which need to be determined according to the symptoms, imaging tests, etc., and be treated with surgery, radiotherapy and chemotherapy. 2. Benign diseases: Hepatitis, tuberculosis, gastroenteritis, etc. can have elevated CEA, if the diagnosis is clear, the indicator can be gradually recovered after treatment for the cause of the disease. 3. Healthy groups: If no disease is detected after comprehensive examination, it is recommended to correct bad habits and test CEA and other tumor markers regularly. Carcinoembryonic antigen 59μg/L is considered to be elevated, and it is recommended to consult a doctor in time to identify the specific cause.