When you have edema, you should choose the department according to the cause of the edema. For edema caused by kidney disease, you can consult nephrology; for edema caused by heart disease, you can consult cardiovascular medicine. If the swelling is caused by endocrine diseases such as hypothyroidism, you can consult the Department of Endocrinology. There are many causes of edema. Edema can be caused by kidney diseases such as nephrotic syndrome and renal failure, heart diseases such as heart failure, endocrine diseases such as hypothyroidism and hypercortisolism, and liver diseases such as cirrhosis and hepatocellular carcinoma, etc. Depending on the cause of the edema, you can choose different departments. Depending on the cause of the edema, different departments should be chosen. For kidney diseases, nephrology is recommended; for heart diseases, cardiovascular medicine is recommended; for endocrine diseases, endocrinology is recommended; and for liver diseases, gastroenterology and hepatobiliary surgery are recommended. If you are not sure which department you need to consult, please ask at the hospital’s information desk.