There are many people who will get up in the morning with swollen face, and the reasons may be the following four categories: 1. The most common face swelling may be nephrogenic face swelling: often there are diseases in the kidneys within the kidney, such as nephrotic syndrome, glomerulonephritis. Therefore, it is necessary to check the nephrology department to see if there are problems with urine and kidney function; 2. Cardiogenic edema: when heart failure occurs, especially right heart failure, body circulation stasis will occur, resulting in facial edema; 3. Hepatogenic edema: the presence of cirrhosis will also cause facial edema; 4. Idiopathic edema, malnutrition edema, and thyroid insufficiency edema may all lead to the face. Therefore, if facial edema occurs, it is necessary to seek medical attention in a timely manner and go for laboratory tests for major causes to clarify which category is causing the edema.