If edema occurs, first of all, we need to identify the specific cause of edema, and then determine the method to remove it. Edema can be caused by hypoproteinemia, which can be caused by malnutrition or liver disease. For edema caused by malnutrition, attention can be paid to eating more protein-rich foods such as beans, meat, fish and shrimp in the diet, and for diseases caused by liver and kidney lesions or serious infections, treatment for the cause is needed. You can also consider the infusion of human albumin to improve the colloid osmotic pressure, which will help reduce edema. Oedema may also be caused by heart problems, and this condition needs to be improved by cardiac diuresis.