Swelling of the face and eyes is mainly seen in the following clinical conditions:1. Heart failure. Especially patients with underlying heart diseases such as coronary artery disease and heart valve disease are prone to affect the function of the heart, resulting in heart failure, causing edema in peripheral tissues due to obstruction of blood return.2. Kidney disease. Especially in patients with nephrotic syndrome, a large amount of albumin is lost from the kidneys, and if it exceeds the synthesizing capacity of the liver and hypoalbuminemia occurs, edema of the face and eyes can occur.3. Severe liver disease. If the synthesis of albumin is affected, resulting in a decrease in the amount of albumin synthesized, hypoalbuminemia occurs, which can also cause edema.4. Mucous edema. This kind of patient can also cause edema of the face and eyes due to the low secretion of thyroid hormone and low basal metabolic rate.