The low copper blue protein may be caused by the following reasons: 1. it may be caused by the patient suffering from cirrhosis of the liver, this situation needs to go to the hospital for examination in order to confirm the diagnosis, if diagnosed, you can take oral medicine such as Anluo Fibro Pills and Sunflower Liver Protective Tablets for treatment. 2. it may be caused by the appearance of biliary bean nucleus degeneration, the patient will appear nausea and vomiting, swallowing difficulties and accompanied by stomach distension and pain. 3, It may be caused by heredity. A few patients may have hereditary copper cyanine deficiency, and a few may also have low copper cyanine, which may lead to abnormal liver and kidney diseases. Therefore, once the copper blue protein is low, it is best to go to the relevant departments of the hospital for the corresponding examination, and then according to the results of the examination, the corresponding treatment is good.