Hypoproteinemia may be related to liver cirrhosis, renal disease, consumptive disease, etc. The symptoms of different causes are different, such as liver cirrhosis mainly manifests as wasting, dull face, etc., and renal disease mainly manifests as generalized swelling, etc. 1. Liver cirrhosis: hypoproteinemia caused by liver cirrhosis is mainly caused by insufficient protein intake, absorption and synthesis. It mainly manifests as emaciation, dull color, dry skin, headache, dizziness and so on. 2. Kidney diseases: such as nephrotic syndrome, chronic nephritis and so on. It is mainly because a large amount of protein is lost with urine, causing hypoproteinemia. The main manifestations are generalized swelling, loss of appetite, low immunity and so on. 3. Consumptive diseases: such as malignant tumors, blood loss, infections and so on. Excessive protein consumption causes hypoproteinemia. Common symptoms include lethargy, depression, dull complexion, malnutrition, etc. If the above symptoms occur, it is recommended to go to the hospital in time for early and regular treatment.